Union of the Crowns

The Union of the Crowns (Scottish Gaelic: Aonadh nan Crùintean; Scots: Union o the Crouns) was the accession of James VI of Scotland to the throne of the Kingdom of England as James I and the practical unification of some functions (such as overseas diplomacy) of the two separate realms under a single individual on 24 March 1603. Whilst a misnomer, therefore, what is popularly known as "The Union of the Crowns" followed the death of James's cousin, Elizabeth I of England, the last monarch of the Tudor dynasty.

The union was personal or dynastic, with the Crown of England and the Crown of Scotland remaining both distinct and separate despite James's best efforts to create a new imperial throne. England and Scotland continued as two separate states sharing a monarch, who directed their domestic and foreign policies, along with Ireland, until the Acts of Union of 1707 during the reign of the last Stuart monarch, Anne. However, there was a republican interregnum in the 1650s, during which the Tender of Union of Oliver Cromwell created the Commonwealth of England and Scotland which ended with the Stuart Restoration.