Robert De Mortimer 1
- Born: Abt 1246, Of, Richard's Castle, Herefordshire, England
- Marriage: Joyce La Zouche Abt 1270, Of, , Devonshire, England
- Died: 7 Apr 1287, about age 41
- Buried: 8 Apr 1287, Cathedral, Worcester, Worcestershire, England
Ancestral File Number: V9TH-GK.
Robert married Joyce La Zouche, daughter of William La Zouche and Maud Mortimer, about 1270 in Of, , Devonshire, England. (Joyce La Zouche was born about 1250 in Of, Kings Nympton, Devonshire, England, christened in Of, Norton, Nothamptonshire, England and was buried on 13 Mar 1289-1290 in Cathedral, Worcester, Worcestershire, England.)