The King has returned to Windsor Castle for a usual working week following a brief stay in hospital due to side effects from his cancer treatment, it is understood.
The 76-year-old monarch will be carrying out a mix of public engagements, state duties and private meetings, including his usual audience with the prime minister, over the coming days.
He is also due to be at investitures at Windsor Castle – where someone who has been awarded an honour receives their award in person from the King or another member of the Royal Family.
The King, who spent a restful weekend at Highgrove in Gloucestershire, will also begin preparing for his state visit to Italy with the Queen.
A small number of the monarch’s appointments have been rescheduled over the next few days to ensure an appropriate balance ahead of the busy state visit next week.
On Thursday, the King will celebrate the 80th Anniversary of Mission Aviation Fellowship (MAF), the humanitarian air operator, which flies to 14,000 remote destinations offering support to isolated communities.
Charles will unveil the charity’s new Cessna 208 Caravan aircraft that will deliver aid to remote regions in Papua New Guinea.
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0:15 The King seen publicly after treatment
His Majesty was pictured smiling and waving as he left Clarence House in central London on Friday where he spent the night with the Queen following the “minor bump” in his cancer journey.
The King cancelled a busy away-day in Birmingham on Friday to prioritise his recovery, after experiencing temporary side effects following treatment at the London Clinic on Thursday morning that required a short period of hospital observation that day.
The monarch was diagnosed with an undisclosed form of cancer in February 2024 and returned to public-facing duties last April, despite still undergoing weekly treatment.
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His cancer diagnosis followed tests after a corrective procedure for an enlarged prostate.
On Thursday, Buckingham Palace said the King “experienced temporary side effects” from his cancer treatment” and “required a short period of observation in hospital”.
“His Majesty’s afternoon engagements were therefore postponed,” the statement added.
Thursday’s short period of observation in hospital was described as a “minor bump in a road that is very much heading in the right direction”, the Press Association said, quoting a source.
