Henry Stuart, Lord Darnley (1546 – 10 February 1567) was King of Scotland as the second husband of Mary, Queen of Scots, from 29 July 1565 until his murder in 1567. Lord Darnley had one child with Mary, the future James VI of Scotland and I of England. Through his parents, he had claims to both the Scottish and English thrones. 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 simply Lord Darnley, his title as heir apparent to the Earldom of Lennox.
He was the second but eldest surviving son of Matthew Stewart, 4th Earl of Lennox, by his wife Lady Margaret Douglas which supported his claim to the English succession. Darnley's maternal grandparents were Archibald Douglas, 6th Earl of Angus, and Queen Margaret Tudor, daughter of King Henry VII of England and widow of King James IV of Scotland.