Sir married Lady Margaret GRAHAM - BUCHANAN OF MONTROSE & PERTHSHIRE before 10 Apr 1565 in Buchanan, Stirlingshire, Scotland. Lady was born in 1549 in Mentieth, Perthshire, Scotland; died on 1 Feb 1578 in Buchanan, Stirlingshire, Scotland. [Group Sheet] [Family Chart]

1. Lady Margaret "Helen" BUCHANAN, * Countess of Colquhoun, Baroness Colquhoun was born on 1 Feb 1576 in Buchanan, Sterling, Scotland; died on 23 May 1617 in Luss, Dunbartonshire, Scotland.