Prime Minister William Lyon Mackenzie King had the Privy Council convene in 1947 to consent to the marriage of Princess Elizabeth (later Queen Elizabeth II) to Philip Mountbatten, per the Royal Marriages Act 1772. The princess' father, King George VI, had offered an invitation for Mackenzie King to attend when the Privy Council of the United Kingdom met for the same purpose, but the prime minister declined and held the meeting of the Canadian Privy Council so as to illustrate the separation between Canada's Crown and that of the UK.