Treaty of Union took effect on 1 May 1707. Queen Elizabeth I of England and Ireland, last monarch of the Tudor dynasty, died without issue on 24 March 1603, and the throne fell at once (and uncontroversially) to her first cousin twice removed, James VI of Scotland, a member of House of Stuart and the only son of Mary, Queen of Scots. By the Union of the Crowns in 1603 he assumed the throne of the Kingdom of England and the Kingdom of Ireland as King James I. This personal union lessened the constant English fears of Scottish cooperation with France in a
House of Tudor factions under a new dynasty. The Tudors extended their power beyond modern England, achieving the full union of England and the Principality of Wales in 1542 (Laws in Wales Acts 1535 and 1542), and successfully asserting English authority over the Kingdom of Ireland. They also maintained the nominal English claim to the Kingdom of France; although none of them made substance of it, Henry VIII fought wars with France trying to reclaim that title. After him, his daughter Mary I lost control of all territory in France permanently with the fall of Calais in 1558. In total, five Tudor monarchs