James Stewart, 1st Earl of Buchan

James Stewart, 1st Earl of Buchan (1442–1499) was a Scottish noble. He was the uncle of James III of Scotland who granted him the Earldom of Buchan in 1469. Buchan repaid his nephew by fighting for his cause against rebellious southern barons. Through his marriage to Margaret Ogilvy he acquired the title Lord Auchterhouse.

Life James Stewart was the second son of Sir James Stewart, the Black Knight of Lorne, and Joan Beaufort, the widow of James I of Scotland. Known as "Hearty James", he was a younger brother of John Stewart, 1st Earl of Atholl, and a younger half-brother of James II of Scotland and Princess Margaret Stewart, first wife of Louis XI of France.

In 1467, his nephew James III granted him and his wife the lands of the Baronies of Strathalva and Down, with the Castle of Banff and the fishings of the water of River Deveron. In 1469, James III conferred on James the Earldom of Buchan (first of the third creation). In 1471 James was appointed Lord High Chamberlain of Scotland and in 1473 he travelled to France as an ambassador. of Sir Alexander Ogilvy of Auchterhouse, and by this marriage he gained the heritable sheriffship and barony of Forfar. Adam Hepburn, 2nd Earl of Bothwell was killed at the Battle of Flodden on 9 September 1513, she died in February, 1557. Isabel Stewart, a mistress of James IV of Scotland, and mother of Lady Janet Stewart, who married 1st to Malcolm Fleming, 3rd Lord Fleming, and after his death was in turn a mistress of Henry II of France. Elene or Ellen Stewart, who was given a grant of the marriage of William Sinclair, son of Oliver Sinclair of Roslin in December 1511.