Henry Stuart, Lord Darnley not together in early 1545 and a letter of March 1566, from Mary Queen of Scots, indicates Darnley was then nineteen years old. Therefore the date 1546 would seem probable. A descendant of both James II of Scotland and Henry VII of England, Henry Stuart, Lord Darnley, was heir to two royal houses, the House of Stuart and the House of Tudor, thus he had claim to both the Scottish and English thrones, a claim that may have cost him his life. In 1545, his father, Matthew Stewart, 4th Earl of Lennox was found guilty of treason in Scotland for
Alan Stewart of Darnley in France, and the chieftaincy of the Stewarts of Darnley. However, by 1437, he had resigned his French territories to his younger brother, Sir John Stewart and returned to Scotland. He became involved in a blood feud with the Boyd Family of Dean Castle. Darnley was killed in 1439 by Sir Thomas Boyd of Kilmarnock, his death was later avenged by his youngest brother Alexander Stewart at the Battle of Craignaught Hill. Alan Stewart of Darnley married Catherine Seton, daughter of Sir William Seton, Master of Seton and Janet Dunbar, herself a daughter of the Earl of Dunbar. They had