Other Events and Attributes:

• House: Carolingian
• Nickname: Lothar
• FSID: KH28-TN6
• Religion: Roman Catholic
• Appointments / Titles: Aug 814; King of Bavaria
• Appointments / Titles: Between 817 and 855, Aachen, Aachen, Nordrhein-Westfalen, Germany; Emperor of the Romans
• Appointments / Titles: Between 817 and 855, Aachen, Aachen, Nordrhein-Westfalen, Germany; King of Italy
• Appointments / Titles: Between 818 and 855, Aachen, Aachen, Nordrhein-Westfalen, Germany; King of Lombardia
• Appointments / Titles: Between 840 and 855; Emperor of the West

Notes:

Lothair I, born in 795, was Emperor of the Roman Empire (co-ruling with his father, Louise the Pious, until 840). He was also the governor of Bavaria and King of Italy and Middle Francia. He was the eldest son of Louis and his wife Ermengarde of Hesbaye, daughter of Ingerman the duke of Hesbaye.

On several occasions, Lothair led his full-brothers, Pepin I of Aquitaine and Louis the German, in revolt against their father to protest against attempts to make their half-brother Charles the Bald a co-heir to the Frankish domains. Upon their father's death, Charles and Louis joined forces against Lothair in a three-year civil war that lasted from 840 to 843. The struggles between the brothers led directly to the breakup of the Frankish Empire that had been assembled by their grandfather Charlemagne, and it laid the foundation for the development of modern France and Germany.

Little is known of Lothair's early life, which probably was passed at the court of his grandfather Charlemagne. In 814, the elderly emperor died, and left his sole surviving legitimate son Louis the Pious as successor to his vast empire. The next year, Lothair would be sent to govern Bavaria for his father, the new emperor. In 817, Louis the Pious drew up his "Ordinatio Imperii." In it he designated Lothair as his principal heir and ordered that Lothair would be the overlord of Louis' younger sons Pippin of Aquitaine (who was 20) and Louis the German (who was 13), as well as his nephew Bernard of Italy, Lothair's cousin. Lothair also would inherit their lands if they died childless. Lothair, at age 22, then was crowned joint emperor by his father at Aachen. At the same time, Aquitaine and Bavaria were granted to his brothers Pippin and Louis, respectively, as subsidiary kingdoms. Following the death of Bernard, Lothair also received the Kingdom of Italy.

In 821, Lothair married Ermengarde (who died in 851), daughter of Hugh the Count of Tours. In 822, he assumed the government of Italy, and at Easter, April 5, 823, he was crowned emperor again by Pope Paschal I, this time at Rome. In November 824, Lothair promulgated a statute, the "Constitutio Romana," concerning the relations of pope and emperor, which reserved the supreme power to the secular potentate, and he afterwards issued various ordinances for the good government of Italy.

On Lothair's return to his father's court, his stepmother Judith won his consent to her plan for securing a kingdom for her son Charles, a scheme that was carried out in 829, when the young prince was given Alemannia as king. However, Lothair soon changed his attitude and spent the succeeding decade in constant strife over the division of the Empire with his father. He was alternately master of the Empire, then banished and confined to Italy, at one time taking up arms in alliance with his brothers, and at another time fighting against them, while the bounds of his appointed kingdom were in turn extended and reduced.

The first rebellion began in 830. All three brothers fought their father, whom they deposed. In 831, their father was reinstated and he deprived Lothair of his imperial title and gave Italy to Charles. The second rebellion was instigated by Angilbert II, Archbishop of Milan, in 833, and again Louis was deposed in 834. Through the loyalty of the Lombards and later reconciliations, Lothair retained Italy and the imperial position through all remaining divisions of the Empire by his father.

When Louis the Pious was dying in 840, he sent the imperial insignia to Lothair, who, disregarding the various partitions, claimed the whole of the Empire. He was 45 years old when his father died. Negotiations with his brother Louis the German and his half-brother Charles, both of whom resisted this claim, were followed by an alliance of the younger brothers against him. A decisive battle was fought at Fontenay-en-Puisaye on June 25, 841, when, in spite of his and his allied nephew Pepin II of Aquitaine's personal gallantry, Lothair was defeated and fled to Aachen.

With fresh troops, Lothair began a war of plunder, but the forces of his brothers were too strong, and taking with him such treasure as he could collect, he abandoned his capital to them. He met with the leaders of the "Stellinga" in Speyer and promised them his support in return for theirs, but Louis, and then the native Saxon nobility, put down the "Stellinga" in the next years.

Peace negotiations began, and in June 842 the brothers met on an island in the Saône. They agreed to an arrangement that developed, after much difficulty and delay, into the Treaty of Verdun, signed in August 843. By this, Lothair received the imperial title as well as northern Italy and a long stretch of territory from the North Sea to the Mediterranean, essentially along the valleys of the Rhine and the Rhône; this territory included the regions Lorraine, Alsace, Burgundy, and Provence. He soon ceded Italy to his eldest son, Louis, and remained in his new kingdom, engaging in alternate quarrels and reconciliations with his brothers and in futile efforts to defend his lands from the attacks of the Northmen (as Vikings were known in Frankish writings) and the Saracens (as those loyal to the various Fatimids, Umayyads and Abbasides are known in Frankish writings). In 845, the count of Arles, Fulcrad, led a rebellion in Provence. The emperor put it down and the count joined him in an expedition against the Saracens in Italy in 846.

In 855, Lothair became seriously ill, and despairing of recovery, he renounced the throne, divided his lands among his three sons, and on September 23 entered the monastery of Prüm, where he died six days later. He was buried at Prüm, where his remains were found in 1860. It was at Prüm that Lothair was most commemorated. The same year, Lothair's kingdom was divided among his three sons in a deal called the Treaty of Prüm: the eldest, Louis II, received Italy and the title of emperor; the second, Lothair II, received Lotharingia; the youngest, Charles, received Provence.

Lothair married Ermengarde of Tours in 821, who died in 851. their children were: Louis II, crowned King of Italy in 844 by Pope Sergius II and crowned Emperor in 850, who married Engelberga; Hiltrude, who married Berengar of Spoleto; Bertha, who married an unknown man and was later Abbess of Avenay; Gisela, Abbess of San Salvatore at Brescia; Lothair II, who succeeded his father and married Teutberga, daughter of Boso the Elder, Count of Arles; Rotrude, who married Lambert III of Nantes; and Charles, who was Invested with Provence, Lyon and Transjuranian Burgundy.

Lothair had one known illegitimate child, Carloman.

-- Wikiwand: Lothair I

Lotharius married de Tours, Empress Ermengarde in Oct 821 in Thionville, Moselle, Lorraine, France. Ermengarde (daughter of de Tours, Hugues and de Morvois, Ava) was born in 804 in Tours, Indre-et-Loire, Centre, France; was christened on 5 Oct 816 in France; died on 20 Mar 851 in Erstein, Bas-Rhin, Alsace, France; was buried on 20 Mar 851 in Erstein, Bas-Rhin, Alsace, France. [Group Sheet] [Family Chart]

Other Events and Attributes:

• FSID: LTY4-Y72
• Appointments / Titles: Between 839 and 840; König von Italien
• Appointments / Titles: 844; König der Langobarden
• Appointments / Titles: 844; König der Langobarden
• Appointments / Titles: 850; Römischer Mitkaiser
• Appointments / Titles: 850; Römischer Mitkaiser

Ludwig married d'Alsazia, Engelberga on 5 Oct 851. Engelberga was born in 830; died on 2 Apr 900 in San Salvatore, Brescia, Brescia, Lombardia, Italy; was buried after 2 Apr 900 in Parma, Parma, Emilia-Romagna, Italy. [Group Sheet] [Family Chart]

Other Events and Attributes:

• Appointments / Titles: Brescia, Brescia, Lombardia, Italy; Abbess to Saint Salvador of Brescia
• Appointments / Titles: Duchess of Moselle
• Appointments / Titles: Gräfin von Lothringen und Maasgau
• Appointments / Titles: Princess of Italy
• Appointments / Titles: Princess of Russia
• FSID: L87F-PT1

Notes:

https://fr.wikipedia.org/wiki/Irmengarde_de_Germanie

Family/Spouse: de Maasgau, Giselbert II. Giselbert was born in 825 in Hainaut, Belgium; died on 6 Sep 885 in Reims, Marne, Champagne-Ardenne, France; was buried after 6 Sep 885. [Group Sheet] [Family Chart]

Other Events and Attributes:

• Appointments / Titles: King of Italy
• FSID: LHJC-WKM
• Appointments / Titles: Between 855 and 869; King of Lotharingia (Lorraine)

Lothaire married de Lorraine, Waldrada on 25 Dec 862. Waldrada was born in 835; died on 9 Apr 869. [Group Sheet] [Family Chart]

Other Events and Attributes:

• Appointments / Titles: Regent of Bavaria during minority of son Henry the Wrangler
• House: Liutpolding
• FSID: GMJ7-4VN

Notes:

http://fmg.ac/Projects/MedLands/ITALY,%20Kings%20to%20962.htm#Ermengardisdied896

Ermengarde is the second daughter of the Western Emperor Louis II the Younger and Engelberge.

Ermengarde (852 / 855-896 in Vienna 1 ) is the second daughter of the Western Emperor Louis II the Younger and Engelberge .

Summary
1 Biography
1.1 Boson's wife
1.2 Regent of the Kingdom of Provence
2 Offspring
3 Notes and references
4 See as well
4.1 Sources and bibliography
4.2 external links
Biography
Boson's wife
In 876 , she married, Duke Boson V of Provence - with Ermengarde, a branch of the Carolingians was founded in the Bosonides - and gave him two daughters and a son, Louis , future emperor of the West .

In May 878 , Pope John VIII, threatened by the Saracens and Italian nobles, took refuge in Arles with her and her husband, Duke Boson.

After the coup d'état of Boson in October 879 , she participated in the defense of Provence against the attempts of the Carolingian kings to reconquer . At the end of 880 , she successfully defended the city of Vienne , in the Rhône valley , capital of the kingdom of Burgondia that her husband Boson had tried to restore, and besieged by the troops of the alliance of the Carolingian kings Charles III the Fat , Louis III of France and Carloman II of France .

In August 881 , during the second siege of Vienna , the troops of Charles III the Fat , newly elected West Germanic Emperor , succeeded in taking the city which was pillaged and burned down. Richard the Justice , brother of Boson, then takes under his protection his sister-in-law and his niece and takes them to Autun , while her husband Boson takes refuge in Provence.

His genealogy on the FMG website [ archive ]
René Poupardin , The Kingdom of Provence under the Carolingians , p. 162-163.
See also
Sources and bibliography
René Poupardin , The Kingdom of Provence under the Carolingians , Lafitte Reprints, 1974.
External links
Notices in general dictionaries or encyclopedias :Dizionario biografico degli italiani [ archive ]Gran Enciclopèdia Catalana [ archive ]
(en) Charles Cawley, “ Italy, emperors & kings - Chapter 4. Kins of Italy 774-887 (Carolingians) ” [ archive ] , at fmg.ac/MedLands (Foundation for Medieval Genealogy) (consulted inapril 2020) , including the dedicated leaflet [ archive ]

Ermengarde married de Provence, Boson in 876. Boson (son of of Gorze, Bivin and d'Arles, Dame Richilde) was born in 841 in Metz, Haute-Savoie, Rhône-Alpes, France; died on 11 Jan 887 in Vienne, Isère, Rhône-Alpes, France; was buried after 11 Jan 887 in Vienne, Isère, Rhône-Alpes, France. [Group Sheet] [Family Chart]

Other Events and Attributes:

• Appointments / Titles: Count of Hainaut
• Appointments / Titles: Count of Henegouwen
• Appointments / Titles: Count of Maasgau
• Appointments / Titles: Duke of Lorraine
• Appointments / Titles: Duke of Lothringen
• House: House of Reginar
• FSID: L8YG-8PB

Notes:

Reginar Longneck
From Wikipedia, the free encyclopedia

Reginar Longneck
Duke of Lorraine
Count of Hainaut
Died 915
Noble family House of Reginar
Spouse(s) Hersinda
Alberada

Issue
Gilbert, Duke of Lorraine
Reginar II, Count of Hainaut
Frederick, Archbishop of Mainz[citation needed]

Reginar Longneck or Reginar I (c. 850 – 915), Latin: Rainerus or Ragenerus Longicollus, was a leading nobleman in the kingdom of Lotharingia, variously described in contemporary sources with the titles of count, margrave, missus dominicus and duke. He stands at the head of a Lotharingian dynasty known to modern scholarship as the Reginarids, because of their frequent use of the name "Reginar".

Background
Reginar was probably the son of Gilbert, count of the Maasgau, and a daughter of Lothair I whose name is not known (Hiltrude, Bertha, Irmgard, and Gisela are candidate names). In an 877 charter in the Capitulary of Quierzy, he possibly already appears as "Rainerus", alongside his probable father as one of the regents of the kingdom during Charles the Bald's absence on campaign in Italy.[1]

Career
Reginar was lay abbot of important abbeys stretching from the Maas to the Moselle through the Ardennes, Saint-Servais in Maastricht, Echternach, Stavelot-Malmedy, and Saint-Maximin in Trier. All these abbeys lay on or near the boundary negotiated between the Eastern and Western Frankish kingdoms in the Treaty of Meerssen in 870, during a period when the Western Kingdom controlled much of Lotharingia. In Echternach, he was referred to as "Rainerus iunior" because the lay abbot before him, a probable relative, had the same name.

Reginar's secular titles and activities are mainly only known from much later sources which are considered to be of uncertain reliability. Dudo of Saint-Quentin, in describing the great deeds of the early Normans, calls Reginar I (who, along with a prince of the Frisians named Radbod, was an opponent of Rollo, the founder of Normandy) a duke of both Hainaut and Hesbaye.[2] Centuries later William of Jumièges, and then later still, Alberic de Trois Fontaines followed Dudo using the same titles when describing the same events. He was variously referred to as duke, count, marquis, missus dominicus, but historians doubt that these titles were connected to a particular territory. That he called himself a duke is known from a charter at Stavelot 21 July 905, but this was during a period when Gebhard was duke of Lotharingia.[3]

Reginar was originally a supporter of Zwentibold in 895, but he broke with the king in 898. He and some other magnates who had been key to Zwentibold's election three years earlier then took the opportunity provided by the death of Odo of France to invite Charles the Simple to become king in Lotharingia. His lands were confiscated, but he refused to give them up and entrenched himself at Durfost, downstream from Maastricht. Representatives of Charles, Zwentibold, and the Emperor Arnulf met at Sankt Goar and determined that the succession should go to Louis the Child. Zwentibold was killed by Reginar in battle in August 900.

Louis appointed Gebhard as his duke in Lotharingia. In 908, Reginar recuperated Hainaut after the death of Sigard. Then, after the death of Gebhard in 910, in battle with the Magyars, Reginar led the magnates in opposing Conrad I of Germany and electing Charles the Simple their king. He never appears as the duke of Lorraine, but he was probably the military commander of the region under Charles. He was succeeded by his son Gilbert; however, the Reginarids did not succeed in establishing their supremacy in Lotharingia like the Liudolfings or Liutpoldings did in the duchies of Saxony and Bavaria.

Family
By his wife Alberada, who predeceased him and was probably a second wife, Reginar left the following children:

Gilbert, Duke of Lorraine
Reginar II, Count of Hainaut
a daughter, who married Berengar, Count of Namur

Family/Spouse: de Hainaut, Countess Alberada. Alberada (daughter of de Hainaut, Comte Alban II and de Namur, Hildeberge) was born in 854 in Reims, Marne, Champagne-Ardenne, France; died in 916 in Reims, Marne, Champagne-Ardenne, France; was buried in 916 in Champagne-Ardenne, France. [Group Sheet] [Family Chart]

Other Events and Attributes:

• Appointments / Titles: Countess of Arles
• Appointments / Titles: Margravine of Tuscany
• House: Carolingian
• FSID: LYZB-L4Y

Notes:

Bertha, daughter of Lothair II
From Wikipedia, the free encyclopedia

Bertha (863-8 – March 925 in Lucca) was countess of Arles by marriage to Theobald of Arles, and margravine of Tuscany by marriage to Adalbert II of Tuscany. She served as regent of Lucca and Tuscany from 915 until 916 during the minority of her son Guy of Tuscany. She was described as beautiful, spirited, and courageous, and her influence over her spouse was, coupled with ambition, attributed to have involved her husbands in many wars.

She was the second illegitimate daughter of Lothair II, King of Lotharingia, by his concubine Waldrada.[1]

Life
Between 879 and 880, Bertha married her first husband, Theobald of Arles. A Bosonid, his father was Hucbert. Hucbert's brother-in-law was Lothair II.

Bertha is also known for her curious correspondence to Caliph al-Muktafi in 906, in which she described herself rather grandly as "Queen of the Franks." Bertha's letter is of interest in that she appears to have little knowledge of Baghdad politics or culture, and it is for this reason that details of her correspondence were recorded by one of the Muslim chroniclers. Bertha was seeking a marriage alliance between herself and the Emir of Sicily, unaware that al-Mukfati had little influence over the Aghlabid colony in Sicily. Moreover, the letter was written in a language unfamiliar to the Caliph's translators, and the accompanying gifts (among them a multicoloured woollen coat) which no doubt indicated largesse on Bertha's part, were unlikely to have impressed al-Muktafi beyond their novelty value.[2]

After the death of Adalbert II in 915, her son Guy became count and duke of Lucca and margrave of Tuscany. Bertha, as his mother, was his regent. She stepped down from regency in 916.

Bertha died on 8 March 925 in Lucca.

Issue
Bertha and Theobald of Arles had four children with :

Hugh (882 – 10 April 947);[3]
Boso (885–936)
Theutberga of Arles (890–948), married Warner, viscount of Sens[4]
An unknown daughter (d. after 924)
Bertha and Adalbert II of Tuscany had three children:

Guy (d. 3 February 929);[5]
Lambert (d. after 938);
Ermengarde (d. 932).

Bertha married d'Arles, Théobald in 880 in Arles, Bouches-du-Rhône, Provence-Alpes-Côte d'Azur, France. Théobald (son of d'Arles, Hucbert and d'Arles, Andaberta) was born on 5 Jan 850 in Arles, Bouches-du-Rhône, Provence-Alpes-Côte d'Azur, France; died in Jun 895 in Orbé, Deux-Sèvres, Poitou-Charentes, France; was buried in Jun 895 in Cathedral of Lucca, Lucca, Lucca, Toscana, Italy. [Group Sheet] [Family Chart]

Other Events and Attributes:

• FSID: L8YB-MPN

Notes:

Willa of Provence was an early medieval Frankish queen in the Rhone valley. It is certain that she was the first consort of Rudolf I of Upper Burgundy; and later, from 912, consort of Hugh of Arles, border count of Provence, who in 926 became king of Northern Italy.

Willa van de Provence was een vroegmiddeleeuwse Frankische koningin in het Rhônedal. Het is zeker dat ze de eerste echtgenote was van Rudolf I van Opper-Bourgondië; en later, vanaf 912, gemalin van Hugo van Arles, grensgraaf van de Provence, die in 926 koning van Noord-Italië werd.

Everything else in her genealogy is more or less UNCERTAIN.

https://en.wikipedia.org/wiki/Guilla_of_Provence
https://fr.wikipedia.org/wiki/Willa_de_Provence
https://it.wikipedia.org/wiki/Willa_di_Provenza

Guilla married von Hochburgund, Rudolph I in 888 in France. Rudolph (son of de Bourgogne, Conrad II and d'Orleans, Waldrada) was born in 859 in Auxerre, Yonne, Bourgogne, France; died on 25 Oct 912 in Bourgogne, France; was buried on 30 Oct 912 in Bourgogne, France. [Group Sheet] [Family Chart]

Guilla married d'Arles, Hugues in 912 in Provence-Alpes-Côte d'Azur, France. Hugues (son of d'Arles, Théobald and de Lorraine, Bertha) was born in 880 in Arles, Bouches-du-Rhône, Provence-Alpes-Côte d'Azur, France; died on 10 Apr 947 in Arles, Bouches-du-Rhône, Provence-Alpes-Côte d'Azur, France. [Group Sheet] [Family Chart]

Other Events and Attributes:

• FSID: 2M5T-R9P

Notes:

Gotfrid of Champagne was the son of Drogo of Champagne and his wife Anstrude of Neustria and Burgundy. He was born in Champagne about 700. He was the younger brother of Arnulf, Duke of Champagne and Hugh Archbishop of Rouen, and older brother of Pippin. He was also the grandson of Pepin of Herstal.

In 723 it is recorded that at the command of Gotfrid's paternal uncle Charles Martel "two sons of Drogo were bound, Arnold [Arnulf] and another who died", either Gotfrid or Pippin. (Recorded in the Annales Nazariani, the Annales Petaviani, Annales Laureshamenses and Annales Alamannici.) As most records give Gotfrid's year of death as 735, it appears that it was Pippin and not Gotfrid who died at the hands of their uncle.

Family/Spouse: le Pieux, WIlliam. WIlliam (son of d'Auvergne, Bernard II and d'Auvergne, Ermengarde) was born in 860 in Uzès, Gard, Languedoc-Roussillon, France; died in DECEASED in Arles, Bouches-du-Rhône, Provence-Alpes-Côte d'Azur, France. [Group Sheet] [Family Chart]

Other Events and Attributes:

• Appointments / Titles: Bourgogne, France; King of Basse Bourgogne
• FSID: 99Y7-Y7P
• Life Event: 21 Jul 905; Blinded by King Berengar of Friuli

Family/Spouse: de Constantinople, Anne. Anne (daughter of Macedonicos, Emperor Leo VI and Karbonopsina, Zoe) was born in 880 in Istanbul, Istanbul, Turkey; died in 901 in Arles, Bouches-du-Rhône, Provence-Alpes-Côte d'Azur, France. [Group Sheet] [Family Chart]

Other Events and Attributes:

• Appointments / Titles: Count of Henegouwen
• Appointments / Titles: Count of Lorraine
• Appointments / Titles: Count of Louvain
• House: Reginar
• FSID: 9W7P-G88
• Appointments / Titles: 915; Count of Hainaut

Notes:

Reginar II, Count of Hainaut
From Wikipedia, the free encyclopedia

Reignar II
Count of Hainaut
Born 890
Died 932 (aged 42)
Noble family Reginar
Issue
Reginar III, Count of Hainaut
Rudolph, Count of the Maasgau
Liéthard
Father Reginar, Duke of Lorraine
Mother Hersinda

Reginar (or Rainier) II (890–932) was Lotharingian magnate who was active from approximately 915 to 932. He was brother of Duke Gilbert of Lotharingia, who died at the Battle of Andernach in 939, and because his son and grandson claimed it, he probably already personally held the fort of Mons in Hainaut as the seat of a county.

History
He was the son of Reginar I Longneck, and this means his paternal grandmother was possibly a daughter of Charles the Bald and Ermentrude.

Flodoard's Annals, reports under the year 924 that Reginar the brother of Duke Gilbert of Lotharingia already had a son who was given as a hostage during conflicts between several of the Lotharingian magnates of the time.[1]

By 943 he was dead, because a charter made in favor of his widowed daughter was done partly in the name of atoning for his sins.[2]

Family
Reginar II had at least three children with Adelaide of Burgundy:

Reginar III, Count of Hainaut
Rudolf, possibly a Count in the Hesbaye
Possibly Liethard or Liechard, a son mentioned in one 966 charter as a son of a Count Reginar.
A daughter who married to Nibelung, Count of Betuwe.
Upon his death, Reginar was succeeded as Count of Hainaut by his son and namesake.

Family/Spouse: de Bourgogne, Princess Adélaïde. Adélaïde (daughter of de Bourgogne, Duke Richard and de Bourgogne, Adélaïde) was born in 896 in Autun, Saône-et-Loire, Bourgogne, France; died in 932 in Hainaut, Belgium; was buried in 932 in Seltz, Bas-Rhin, Alsace, France. [Group Sheet] [Family Chart]

Other Events and Attributes:

• House: Carolingian
• FSID: K6WN-292
• Appointments / Titles: Between 911 and 931, Avignon, Vaucluse, Provence-Alpes-Côte d'Azur, France; Count of Avignon
• Appointments / Titles: Between 926 and 931, Arles, Bouches-du-Rhône, Provence-Alpes-Côte d'Azur, France; Count
• Appointments / Titles: Between 931 and 936, Tuscania, Viterbo, Lazio, Italy; Margrave of Tuscany

Notes:

"Boso was a Burgundian nobleman who spent much of his career in Italy, where he became Margrave of Tuscany about 932.

"Boso was the second son of Count Theobald of Arles and Bertha, illegitimate daughter of King Lothair II. His family belonged to the highest ranks of the aristocracy of the Carolingian Empire and were related by marriage to the Carolingian dynasty and the Bosonids, the ruling family of Provence."

-------
“Royal Ancestry: A Study in Colonial & Medieval Families,” Douglas Richardson (2013):

“BOSO, Count of Avignon, 911-931, Count of Arles, 926-931, Margrave of Tuscany, 931-936, younger son by his mother's 1st marriage. He married WILLA, conjectured to be a daughter of Rudolf I, King of Burgundy. They had four daughters, Bertha (wife of Boso, Count in Upper Burgundy, and Raymond, Count of Rouergue, Margrave of Septimania, Duke of Aquitaine), Willa, Richilda, and Gisela. BOSO conspired against his brother, Hugo, in 936, and was captured and imprisoned by him.

Schwennicke Europäische Stammtafeln 2 (1984): 186 (sub Italy). Winter Descs. of Charlemagne (800-1400) (1987): VI.17, VII.35-VII.38. Bouchard Those of My Blood (2001): 84 (chart), 87. Jackman Ins Hereditarium Encountered II: Approaches to Reginlint (2008): 22-27.
Child of Count Boso, by Willa:
i. WILLA OF ARLES, married BERENGARIO (or BÉRENGER) II, Margrave of Ivrea, King of Italy [see Line D, Gen. 6].”

"Boso was a Burgundian nobleman who spent much of his career in Italy, where he became Margrave of Tuscany about 932.

Bosone married de Bourgogne, Willa in 912 in Bourgogne, France. Willa was born in 900 in Bourgogne, France; died in 936 in Bourgogne, France. [Group Sheet] [Family Chart]

Notes:

https://fr.wikipedia.org/wiki/Hugues_d%27Arles
https://en.wikipedia.org/wiki/Hugh_of_Italy

Hugues married de Provence, Guilla in 912 in Provence-Alpes-Côte d'Azur, France. Guilla (daughter of de Provence, Boson and de Italy, Queen of Burgundy Ermengarde) was born in 873 in Vienne, Poitou-Charentes, France; died on 14 Feb 929 in Vienne, Poitou-Charentes, France. [Group Sheet] [Family Chart]