John married Isabel de Warren before 7 Feb 1280. Isabel (daughter of John de Warren, 7th Earl of Warren and Surrey and Alice le Brun) was born in 1253; and died. [Group Sheet] [Family Chart]
Family/Spouse: Brian FitzBrian, Baron of Bedale. Brian (son of Alan of Bedale FitzBrian, Lord of Bedale and Agnes FitzHenry) died on 1 Jun 1306; was buried in Bedale Church. [Group Sheet] [Family Chart]
Family/Spouse: Margherita of Taranto. Margherita (daughter of Philip I, Prince of Taranto and Catherine of Valois) was born about 1325; died in 1380. [Group Sheet] [Family Chart]