Royal and Parliamentary Titles Act 1927

The Royal and Parliamentary Titles Act 1927 (17 & 18 Geo. 5 c. 4) was an Act of the Parliament of the United Kingdom that authorised the alteration of the British monarch's royal style and titles, and altered the formal name of the British Parliament, in recognition of most of Ireland separating from the United Kingdom as the Irish Free State. It received royal assent on 12 April 1927.