John married Elizabeth PERCY, [BARONESS CLIFFORD] about Nov 1412 in Btwag1403-Nv1412. Elizabeth (daughter of Henry "Hotspur" De PERCY and Elizabeth MORTIMER) was born about 1395 in Of, Alnwick, Northumberland, England; died on 26 Oct 1437 in , , , England; was buried in 1437 in Staindrop Church, Staindrop, Durham, England. [Group Sheet] [Family Chart]