Gilbert married Elizabeth Comyn, [COUNTESS OF ANG before 13 Oct 1307 in Of Castle, Prudhoe, Northumberland, England. Elizabeth (daughter of Alexander Comyn, [EARL OF BUCHAN] and Elizabeth (Isabel) De Quincy) was born about 1248 in Of, Buchan, Aberdeenshire, Scotland; died before 17 Feb 1328 in Of Castle, Prudhoe, Northumberland, England; was buried in Priory Of, Hexam, Northumberland, England. [Group Sheet] [Family Chart]