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 rose) and the House of York (whose badge was a white rose). He married Elizabeth of York to bring all factions together. On his marriage, Henry adopted the Tudor Rose badge conjoining the White Rose of York and the Red Rose of Lancaster. It symbolized the Tudor's right to rule as well the uniting of the kingdom after the Wars of the Roses. It was used by every English, then British, monarch since Henry VII as a royal badge. The Tudors also used monograms to denote themselves: As noted above Tewdur or Tudor is derived from the words tud "territory"