Acts of Union 1800 when repealed in 1962. Before these Acts, Ireland had been in personal union with England since 1541, when the Irish Parliament had passed the Crown of Ireland Act 1542, proclaiming King Henry VIII of England to be King of Ireland. Since the 12th century, the King of England had been technical overlord of the Lordship of Ireland, a papal possession. Both the Kingdoms of Ireland and England later came into personal union with that of Scotland upon the Union of the Crowns in 1603. In 1707, the Kingdom of England and the Kingdom of Scotland were united into a single
Constitution of the United Kingdom two Acts of Union which were passed by the Parliaments of both nations. The Treaty, along with the subsequent Acts, brought into existence the Kingdom of Great Britain, uniting the Kingdom of England and the Kingdom of Scotland. Common law legal systems exist in Northern Ireland and in England and Wales, but not in Scotland which has a hybrid system (see Scots law) which includes a great deal of Common Law. Court judgments also commonly form a source of the constitution: generally speaking in English Law, judgments of the higher courts form "precedents" or "case law" that binds lower courts