Robert married Margaret de Percy, Baroness Ferrers of Groby on 20 Jan 1339. Margaret (daughter of Henry de Percy, 2nd Baron Percy and Idoine de Clifford) died on 2 Sep 1375 in Gyng (Buttsbury), Essex; was buried in Friars Preachers, Chelmsford. [Group Sheet] [Family Chart]
- Yes, date unknown
