On Saturday, his funeral will be attended by more than 150 delegations, including 54 heads of state and 12 reigning sovereigns, the Vatican confirmed, as well as thousands of faithful. 8.30am Archbishops and bishops will begin to assemble in the Constantine Wing, a corridor adjacent to St Peter's Basilica. They will wear chasuble (the outer garment worn by clergy during services), alb, belts and a simple white mitre. Priests and deacons will also assemble at 8.30am in the area set aside for them in St Peter's Square. They will wear a chasuble, alb, belt and a red stole. At 9am, the patriarchs and cardinals will meet in Saint Sebastian's Chapel in the Basilica. They will wear the white Damascene mitre. They will all then walk in the funeral procession alongside Francis's coffin, where the late Pope will be dressed in a red chasuble, damask and golden papal mitre. At 10am local time (9am BST) the funeral will begin, and the coffin will be laid in the square in front of St Peter's Basilica. The service will be presided over by Cardinal Giovanni Battista Re, Deacon of the College of Cardinals. The Prince of Wales, who is attending the service on behalf of the King, is listed beside the Prince of Norway in the "order of precedence" for international attendees. William and Haakon are listed in their own category as crown princes and are followed in the order of precedence by representatives from the Andorran government. The British Government delegation includes Sir Keir Starmer, who will be accompanied by his wife Victoria, as well as Foreign Secretary David Lammy, UK ambassador to the Vatican Chris Trott, and Ailsa Terry, the Prime Minister's private secretary for foreign affairs. The UK Government delegation is listed between groups from Qatar and Serbia led by those countries' heads of government. Ireland's delegation comes ahead of both William and the British Government delegation as it is led by head of state President Michael D Higgins. It falls between groups from Indonesia and Iceland, also led by those countries' heads of state. Francis's birth country Argentina will take precedence in the seating, followed by Italy.