Robert married Jean Kerr before 1595. Jean (daughter of Mark Kerr, 1st Earl of Lothian and Margaret Maxwell) died on 17 Aug 1632. [Group Sheet] [Family Chart]
Robert married Margaret Montgomerie before 24 Mar 1614. Margaret (daughter of Robert Montgomerie, Master of Eglinton and Jean Campbell) was born about 1589; died in 1616. [Group Sheet] [Family Chart]
Robert married Christian Hamilton on 9 Dec 1617. Christian (daughter of Thomas Hamilton, 1st Earl of Haddington and Margaret Borthwick) was born about 1590; died in Jan 1645 in Ardross; was buried on 6 Feb 1645. [Group Sheet] [Family Chart]
Robert married Anne Fleming on 10 Sep 1639. Anne (daughter of John Fleming, 2nd Earl of Wigton and Margaret Livingston) died on 20 Apr 1661. [Group Sheet] [Family Chart]