Family/Spouse: Pierre I De Grandson. Pierre (son of Ebal IV De Grandson and Beatrice De Geneva) died between 1253 and 1257. [Group Sheet] [Family Chart]
Guillaume married Sybil De Tregoss in 1287. Sybil (daughter of John St John Of Tregoss) died in 1334. [Group Sheet] [Family Chart]
Mabel married John De Pateshulle in 1312. [Group Sheet] [Family Chart]
Family/Spouse: Roger De Beauchamp. Roger (son of Giles De Beauchamp and Catherine De Bures) died in 1379. [Group Sheet] [Family Chart]