King Charles and Queen Camilla will travel to Italy and the Vatican in April to meet with Pope Francis, as the Catholic Church celebrates a special Jubilee year, which takes place every quarter of a century.

The King and Queen are to pay state visits to Italy and the Vatican, Buckingham Palace has confirmed. The major spring tour, which has long been trailed in the media, will take place in early April and coincides with Charles and Camilla’s 20th wedding anniversary.

Pope Francis is suffering from bronchitis but plans to maintain his scheduled appointments in the coming days, the Vatican said on Thursday.

Due to a fresh bout of bronchitis, something he has experienced with increasing regularity, Pope Francis has decided to move his official meetings to his residence, rather than the more formal setting of the Vatican’s apostolic palace.

The pope has faced several health challenges in recent years, including knee problems requiring a wheelchair, respiratory infections, and a fall resulting in a forearm contusion.