Union of the Crowns create a new "imperial" throne of "Great Britain". England and Scotland continued as autonomous states sharing a monarch with Ireland (with an interregnum in the 1650s during the republican unitary state of the Commonwealth and the Protectorate), until the Acts of Union of 1707 during the reign of the last Stuart monarch, Anne. In August 1503, James IV of Scotland married Margaret, eldest daughter of Henry VII of England, and the spirit of the new age was celebrated by the poet William Dunbar in "The Thrissil and the Rois". The marriage was the outcome of the Treaty of Perpetual Peace,
Acts of Union 1707 to unite the two realms so he would not be "guilty of bigamy;" he used the royal prerogative to take the title "King of Great Britain" and give a British character to his court and person. The 1603 Union of England and Scotland Act established a joint Commission to agree terms but the English Parliament was concerned this would lead to the imposition of an absolutist structure similar to that of Scotland. James dropped his policy of a speedy union, the topic disappeared from the legislative agenda while attempts to revive it in 1610 were met with hostility. This did