King James VI of Scotland inherited the throne of England in 1603. Although this is called ‘the Union of the Crowns’, in fact the crowns of England and Scotland remained separate until the Act and Treaty of Union of 1707 joined them in the new Kingdom of Great Britain.
House of Stuart
James I (James VI of Scotland) 1603–1625
Charles I 1625–1649
Commonwealth and Protectorate
Commonwealth (Republic) 1649–1654
Oliver Cromwell 1654–1658 (Lord Protector)
Richard Cromwell 1658–1659 (Lord Protector)
Commonwealth (Republic) 1659–1660
House of Stuart
Charles II 1660–1685
James II (James VII of Scotland) 1685–1688
William III and Mary II 1689–1702
Anne 1702–1714