Hij is getrouwd met Margaret Douglas.
Zij zijn getrouwd in het jaar 1459, hij was toen 19 jaar oud.Bron 2
Kind(eren):
John Stewart, 1st Earl of Atholl (c. 1440 \endash 19 September 1512), also known as Sir John Stewart of Balveny, was a Scottish nobleman and ambassador to England (in 1484).
He was the oldest child of Joan Beaufort, widowed Queen of James I of Scotland, and her second husband Sir James Stewart, the Black Knight of Lorn.
He was created Earl of Atholl in around 1457, the first Earl of the eighth creation of the title. He is believed to have had a hand in suppressing the rebellion of John Macdonald, 11th Earl of Ross, the last of the Lords of the Isles. According to legend, the Earl of Atholl had whisky, honey and oats added to Macdonald's well, which so entranced or intoxicated him that Macdonald was easily captured. The mixture became a drink named Atholl Brose.
Stewart was buried in Dunkeld Cathedral in Perthshire.