Monarchy of Ireland and Ireland in a personal union. The Union of the Crowns in 1603 expanded the personal union to include Scotland. The personal union between England and Scotland became a political union with the enactments of the Acts of Union 1707, which created the Kingdom of Great Britain. The crowns of Great Britain and Ireland remained in personal union until it was ended by the Acts of Union 1800, which united Ireland and Great Britain into the United Kingdom of Great Britain and Ireland from January 1801 until December 1922. After that date, most of Ireland left the United Kingdom to
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