In a historic moment not seen since the Reformation, King Charles III will visit the Vatican to meet Pope Leo XIV, the newly elected American-born pontiff. Buckingham Palace has confirmed that both King Charles, who continues his cancer treatment, and Queen Camilla will take part in a two-day state visit.

The highlight of the trip will be a joint prayer service in the famed Sistine Chapel, where the monarch and the Pope will pray together publicly—something that has not happened between the leader of the Church of England and the head of the Roman Catholic Church since King Henry VIII’s break from Rome in 1534. The Palace has called it “a significant moment in relations between the Catholic Church and the Church of England.”

The King and Queen will first meet Pope Leo XIV in the Apostolic Palace before joining in an ecumenical service focused on environmental stewardship and unity among Christians. The event reflects the Jubilee year’s theme of “walking together as Pilgrims of Hope.” Choirs from both the Chapel Royal and St. George’s Chapel, Windsor, will provide music for the service.

In addition to the prayer service, Pope Leo will bestow on King Charles the honor of “Royal Confrater” of the Abbey of St. Paul’s Outside the Walls, one of Rome’s four major papal basilicas and the resting place of St. Paul. A special seat bearing the King’s coat of arms will be unveiled during a service at the basilica. The chair will remain permanently in the basilica for use by his heirs and successors, symbolizing enduring ties between the English crown and the Catholic Church.

Palace officials emphasized that the new title of Royal Confrater carries no constitutional or ecclesiastical implications for Charles’s role as Supreme Governor of the Church of England. Instead, it serves as a tribute to the King’s decades-long commitment to building bridges across faith traditions.

“It is intended as an ecumenical gesture of hospitality,” the Palace noted, “celebrating the deep and warm friendship between the two churches.”

Beyond the ceremonial events, the royal couple will also engage in initiatives reflecting their ongoing priorities. King Charles and Pope Leo will attend a meeting on sustainability, while Queen Camilla will view Michelangelo’s final frescoes and meet with Catholic sisters working globally to combat human trafficking and promote peace.

The King will also visit the Pontifical Beda College, a seminary training priests, where he will meet with students preparing for ministry. The Queen will continue her focus on humanitarian issues by meeting women religious who are leading efforts in education and justice around the world.

Officials from the Commonwealth and Development Office stressed the broader significance of the visit. “At a time of global instability and conflict, the UK’s relationship with the Holy See is more important than ever,” a spokesperson said. “This historic state visit will strengthen ties with the Catholic Church, the world’s largest non-state education and healthcare provider, and a crucial partner in promoting peace, security, and addressing climate change.”

For both the King and Pope Leo, the meeting represents more than diplomacy—it is a visible witness of Christian unity and a shared commitment to prayer, peace, and hope in a fractured world.