Lord Darnley, second husband of Mary, Queen of Scots, is found strangled following an explosion at the Kirk o' Field house in Edinburgh, Scotland, a suspected assassination.

Henry Stuart, Lord Darnley (1546 – 10 February 1567) was an English nobleman who was the second husband of Mary, Queen of Scots and the father of James VI of Scotland and I of England. Through his parents, he had claims to both the Scottish and English thrones, and from his marriage in 1565 he was king consort of Scotland. Less than a year after the birth of his son, Darnley was murdered at Kirk o' Field in 1567. Many contemporary narratives describing his life and death refer to him as Lord Darnley, his title as heir apparent to the Earldom of Lennox, and it is by this appellation that he is known in history.