John Stewart, 4th Earl of Moray (c. 1533–1592) was a Scottish nobleman and a prominent figure during the turbulent times of the {Scottish Reformation}. He was the son of {James Stewart, 3rd Earl of Moray} and played a significant role in the political landscape of Scotland, particularly in the conflicts between {Protestants} and {Catholics}. As a supporter of {Mary, Queen of Scots}, he was involved in various political intrigues and military campaigns. After the defeat of Mary, he became a key player in the {Scottish Parliament} and was appointed as the {Regent for James VI}. His leadership helped shape the future of Scotland during a period of significant change.