Patrick Lyon, 1st Lord Glamis

Patrick Lyon, 1st Lord Glamis (1402 – 21 March 1459) P.C. was a Scottish nobleman, created Lord Glamis on 28 June 1445.

He was the son of Sir John Lyon of Glamis (c.1377–c.1435) and Elizabeth Graham, daughter of Sir Patrick Graham of Dundaff and Kincardine and Euphemia Stewart, Countess of Strathearn. Sir John was the son of Sir John Lyon (d. 1382) and Princess Joanna Stewart, daughter of Robert II of Scotland.

Patrick Lyon was hostage in England for King James I from 1424 until 9 November 1427 when he was exchanged for another hostage. He was one of the Lords Auditors (1450–1451) and Master of the King's Household (1450–1452) to King James II. He was Ambassador to England (1451) and again (1455). He was Keeper of the Castles of Kildrummy, Kindrocht and Balveny (1456–1459).

Late in 1427 or soon thereafter he married Isabel, daughter of Sir Walter Ogilvie of Lintrethan, Treasurer of Scotland. They had at least four children:

The late Queen Elizabeth the Queen Mother, Lady Elizabeth Bowes-Lyon, was a descendant of Lord Glamis.

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