Rare royal appearance: The Duke of Kent, 90, joined King Charles for a formal chivalry ceremony, marking one of his few public engagements in recent years. Historic royal duty: This was Charles’s first time leading the Order of St Michael and St George service as monarch, a tradition dating back to 1818. Honoring global service: The Order recognizes individuals for distinguished service abroad or in Commonwealth affairs, with ceremonies held every four years. A rare reunion of royal cousins King Charles III and the Duke of Kent appeared together at St Paul’s Cathedral for the Order of St Michael and...