Family: de Keynes, Richard / de Mankesey, Alice (F12316)
m. 1259-
Male
de Keynes, Richard
Birth 1228 Horsted Keynes, Sussex, England 
Death 1295 Horsted Keynes, Sussex, England Burial Marriage 1259 [1, 2] England [1, 2] Father de Keynes, Lord Richard | F12326 Group Sheet Mother de Huntingfield, Lady Sarah | F12326 Group Sheet
Female
de Mankesey, Alice
Birth 1228 England Death DECEASED England Burial Father de Mankesey, Robert | F12317 Group Sheet Mother de Bavelingham, Isabel | F12317 Group Sheet
Female
de Keynes, Joan
Birth 1259 Horsted Keynes, Sussex, England Death DECEASED England Burial Spouse de Lewknor, Sir Roger | F12315 Marriage 1271 Horsted Keynes, Sussex, England
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Sources - [S789] WORLD: Family Search, Family Tree.
https://www.familysearch.org/search/tree/name - [S2115] ENGLAND: Magna Carta Ancestry: A Study in Colonial and Medieval Families Vols. 1, 2, 3 & 4.
https://www.amazon.com/Magna-Carta-Ancestry-Colonial-Medieval/dp/1461045207
- [S789] WORLD: Family Search, Family Tree.