John married Countess of Menteith Mary Margaret Graham in 1359 in Scotland. Mary (daughter of 9th Earl of Menteith John Graham and Countess of Menteith Mary Menteith Stewart) was born before 1334 in Buchanan, Stirlingshire, Scotland; died in 1380 in Buchanan, Stirlingshire, Scotland; was buried in 1380 in Stirling, Stirlingshire, Scotland. [Group Sheet] [Family Chart]
