He was the 2nd Duke of Albany. Beheaded 1425 at Stirling Castle. James I seized his castles at Falkland and Doune (letter from Philip B. Stewart, 6 Sabal Ct., Sewall's Pt., Stuart, Fl, 4/24/1990). (Williamson, David. Debrett's kings and queens of Britain. Topsfield, Mass. ; Salem House Publishers, 1986, pg. 229.
Murdoch STEWART 2nd Duke Of Albany b: ABT 1362 in Dunreath, Strathblane, Argyllshire, Scotland. Murdac Stewart (known in English as "Murdoch"), 2nd Duke of Albany, 11th Earl of Menteith, and Regent of Scotland. He served for a year as justiciar, but after his father, Robert Stewart, Duke of Albany, became governor of Scotland, then Murdac was captured by England's King Henry IV and held prisoner. Murdac was later released by King Henry V in exchange for ransom and prisoner exchange. Murdac was heir presumptive to the throne of Scotland. When Murdac's father, Robert Stewart, Duke of Albany, died at the age of about eighty-one, then Murdac succeeded him as Duke of Albany and Governor of Scotland. Murdac lacked his father's political touch and popularity. Under Murdac's rule lawlessness grew and Murdac's sons were known to be among the worst offenders. His attempt at governing foundered after four years of futile misrule. In 1424 King James I, his cousin, returned to Scotland as a "king unleashed" after eighteen years of imprisonment in England. Since James I's kingship had been at risk while imprisoned in England, he did not intend for it to be threatened upon his return to Scotland. In 1425 he ordered Murdac and his sons beheaded at Stirling (The Stewarts of Balquhidder)