John Erskine, 18th Earl of Mar

John Erskine, Earl of Mar (c. 1562 – 14 December 1634) was a Scottish politician, the only son of another John Erskine. He is regarded as both the 19th earl (in the 1st creation) and the 2nd earl (in the 7th).

John Erskine was born in 1558, though the precise date is unknown. Together with King James VI of Scotland he was educated by George Buchanan. After attaining his majority he was nominally the guardian of the young king, who was about seven years his junior, and who lived with him at Stirling; but he was in reality something of a puppet in the hands of the regent, James Douglas, 4th Earl of Morton; and he lost power and position when Morton was imprisoned.

He married his first wife, Anne Drummond (1555 - 1587) in October 1580. Anne was the daughter of Lord David Drummond (d. 1571) and Hon. Lilias Ruthven (d. 1579). Their marriage was cut short by Anne's early death in 1587, but the marriage did produce John's son and heir, John Erskine.

He was concerned in the seizure of James VI in 1582 (a plot known as the raid of Ruthven); but when James escaped from his new custodians the earl fled into the west of Scotland. Then leaving his hiding-place the Earl of Mar seized Stirling Castle, whereupon James marched against him, and he took refuge in England. Queen Elizabeth I interceded for him, but in vain, and after some futile communications between the governments of England and Scotland the Earl of Mar and his friends gathered an army, entered the presence of the king at Stirling, and were soon in supreme authority (1585). The Earl of Mar was restored to his lands and titles. Henceforward he stood high in the royal favor; he became governor of Edinburgh Castle and was made tutor to James's son, Prince Henry.

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