The King is said to be proud his state visit to the Vatican will stand as a symbol of the unifying journey Anglicans and Catholics are making in a troubled world.
Charles and Queen Camilla arrived in Italy for an historic trip which will see the King, Supreme Governor of the Church of England, become the first British monarch to pray at a public service with the Pope, head of the Catholic Church, since the Reformation.
The royal couple were formally welcomed by representatives from the Holy See, the government of the Roman Catholic Church in the Vatican, when they stepped from their plane at the military base Ciampino 31st Wing Airport in Rome.
They were greeted by Christopher Trott, British ambassador to the Holy See; Monsignor Javier Domingo Fernández Gonzalez, Vatican City Head of the Protocol Office; and Archbishop Francesco Canalini, a retired Apostolic Nuncio and former papal diplomat.
The King and Pope’s moment of prayer, during an ecumenical service on Thursday at the Sistine Chapel, is an important symbol of the continuing dialogue between Anglicans and Catholics.