House of Commons Speaker Lindsay Hoyle was the first to pledge he will “bear true allegiance to his Majesty King Charles, his heirs and successors,” followed by the longest-serving lawmakers and the prime minister.

All lawmakers pledge allegiance to the monarch after they are elected. Making a new vow when the monarch changes is not a legal requirement, but all 650 lawmakers will have a chance to retake the oath in the coming days if they wish.

Normal parliamentary business has been suspended during a period of mourning for the queen. The House of Commons is holding a rare Saturday session so that lawmakers can pay tribute to the late monarch.