Family/Spouse: Unknown. [Group Sheet] [Family Chart]
Family/Spouse: Sir William de Seton. William (son of Alan de Wyntoun de Seton and Margaret Seton) and died. [Group Sheet] [Family Chart]
Family/Spouse: Katherine Sinclair. Katherine (daughter of Sir William Sinclair) and died. [Group Sheet] [Family Chart]
Alexander married Elizabeth Gordon in 1408. Elizabeth (daughter of Sir Adam Gordon and Elizabeth Keith) died on 16 Mar 1438 in Strathbogie; was buried in Aberdeen, , Aberdeen, Scotland. [Group Sheet] [Family Chart]
Family/Spouse: Robert de Keith, Master of Marischal. Robert (son of Sir William de Keith and Mary) died before 22 Sep 1446. [Group Sheet] [Family Chart]
Alexander married Gille (Egidia) Hay on 8 Jan 1426 (Annulment). Gille and died. [Group Sheet] [Family Chart]
Alexander married Elizabeth Crichton before 18 Mar 1439. Elizabeth (daughter of William Crichton, 1st Lord Crichton and Agnes) died on 9 Jun 1479 in Strathbogie. [Group Sheet] [Family Chart]