Stewart of Darnley Stewart of Darnley Stewart of Darnley was a notable Scots family, a branch of the Clan Stewart, who provided the English Stuart monarchs with their male-line Stuart descent, after the reunion of their branch with the royal Scottish branch, which led to the ultimate union of the two main kingdoms of Great Britain: England and Scotland. In 1565 the House of Stewart of Darnley was re-united with the Royal House of Stewart when Henry Stuart, Lord Darnley married his first cousin, Mary, Queen of Scots, both being grandchildren of Margaret Tudor, daughter of King Henry VII of England, and hence
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