History of the formation of the United Kingdom Kingdom of England (which included Wales and controlled Ireland) and the Kingdom of Scotland. The once independent Principality of Wales fell under the control of English monarchs from the Statute of Rhuddlan in 1284. The Union of Crowns in 1603, the accidental consequence of a royal marriage one hundred years earlier, united the kingdoms in a personal union, though full political union in the form of the Kingdom of Great Britain required a Treaty of Union in 1706 and Acts of Union in 1707 (to ratify the Treaty). The Act of Union 1800 united the Kingdom of Great Britain with
United Free Church of Scotland United Free Church of Scotland The United Free Church of Scotland (UF Church; , ) is a Scottish Presbyterian denomination formed in 1900 by the union of the United Presbyterian Church of Scotland (or UP) and the majority of the 19th century Free Church of Scotland. The majority of the United Free Church of Scotland united with the Church of Scotland in 1929. The Free Church of Scotland seceded from the Church of Scotland in the Disruption of 1843. The United Presbyterian Church was formed in 1847 by a union of the United Secession and Relief Churches, both of which