Robert Blanchemans de Beaumont, 3rd Earl of Leicester, Lord High Steward of England, was born 1130 to Robert de Beaumont, 2nd Earl of Leicester (1104-1168) and Amice de Gael de Montfort and died 31 August 1190 Durazzo, Albania of unspecified causes. He married Pernelle de Grandmesnil (1135-1212) 1155 JL . Charlemagne (747-814)/s, Hugh Capet (c940-996)/s.
|Offspring of Robert de Beaumont and Pernelle de Grandmesnil (1135-1212)|
|Robert de Beaumont, 4th Earl of Leicester (c1156-1204)|
|Roger de Beaumont (c1158-1202)|
|Amicia Beaumont (c1155-1215)||1155||September 1215||Simon IV de Montfort (c1156-1187) Simon IV de Montfort (c1156-1187) Guillaume II des Barres|
|Margaret Beaumont (1180-1236)||1180 Hampshire, England||12 January 1236 Northamptonshire, England||Saer de Quincy, 1st Earl of Winchester (c1170-1219)|