John married Countess of Angus Margaret Abernethy on 24 Oct 1328 in Scotland. Margaret (daughter of Lord Abernethy Alexander Abernethy and Margaret Menteith) was born in 1300 in Abernethy, Perthshire, Scotland; died after 1370 in Angus, Scotland. [Group Sheet] [Family Chart]
1294 - 1331 (37 years)