Mary Stewart, Countess of Arran, Scottish princess (d. 1488)
Mary Stewart, Countess of Arran (13 May 1453 – May 1488) was the eldest daughter of King James II of Scotland and Mary of Guelders. Her brother was King James III of Scotland. She married twice: firstly, to Thomas Boyd, 1st Earl of Arran; secondly, to James Hamilton, 1st Lord Hamilton. It was through her children by her second husband that the Hamilton earls of Arran and the Stewart earls of Lennox derived their claim to the Kingdom of Scotland.