He [Roger de Leyburn] married, 2ndly, before September 1267, Eleanor, widow, 1stly, of William DE VAUX and, 2ndly, of Roger (DE QUINCY), EARL OF WINCHESTER, and daughter of William (DE FERRERS), EARL OF DERBY, by his 1st wife, Sybil, 3rd daughter and coheir of William (MARSHAL), EARL OF PEMBROKE, sister of Walter, 8th Earl of Pembroke. He died circa October 1271, being still alive in the middle of that month. Dower was assigned to his widow 2 November. She died before 26 October 1274, and was buried at Leeds Priory. [Complete Peerage VII:634, XIV:433, (transcribed by Dave Utzinger)]
Ancestral File Number:<AFN> 84ZX-C9