John Stewart, 1st Earl of Angus

Sir Alexander died around 1319, and Stewart inherited his father's estates in Berwickshire, centered upon the barony of Bonkyll and Preston.

Stewart assumed his wife's titles, and was further ennobled by Robert I of Scotland in 1329, being created Earl of Angus.

[4] The Earldom of Angus had been forfeited by the previous holder, Robert de Umfreville, before 1314, for choosing the losing side during the Wars of Scottish Independence, although he continued to style himself Earl until his death in 1325.

This close connection of the Douglas Earls of Angus with the House of Stewart was to have large implications for the latter's future struggles with the Black Douglases.

Stewart was knighted on 24 November 1331 on the coronation of King David II, but died just two weeks later.