Sir John Lyon of Glamis (c. 1340 – 4 November 1382) was a Scottish nobleman who was Chamberlain of Scotland between 1377 and 1382.
[2] He was first appointed to a position at the Scottish court sometime prior to 1368 in the reign of David II, when he was given the responsibility of examining the records of the Chamberlain.
He was killed (perhaps rather treacherously) on 4 November 1382 during a quarrel with Sir James Lindsay of Crawford, nephew of the King, near Menmuir in Angus.
[4] In 1376, Sir John Lyon married Princess Jean, a daughter of Robert II, by his wife Elizabeth Mure.
The Princess was the widow of Sir John Keith, eldest son of the Earl Marischal.