King Charles III has been named the hardest-working royal of 2025, completing 532 official engagements despite undergoing regular cancer treatment. The 77-year-old monarch surpassed his sister Princess Anne, who carried out 478 duties, according to an analysis of the Court Circular by royal expert Patricia Treble.
The King's engagements accounted for 22% of the total 2,458 royal duties recorded in 2025. His workload increased by 49% compared to the previous year, with visits across the UK and overseas trips to Italy, Canada, and Poland. Charles continued his cancer treatment following his diagnosis nearly two years ago, with a brief hospital stay in March due to side effects.
Princess Anne, 75, worked 186 days but completed fewer engagements than her brother. The Duke of Edinburgh, Prince Edward, ranked third with 313 engagements, followed by his wife Sophie, Duchess of Edinburgh, on 235. Queen Camilla was fifth with 228 duties.
Prince William, 43, carried out 202 engagements, a 45% increase from 2024, while the Princess of Wales, also 43, saw a 423% rise to 68 engagements as she gradually returned to duties after her own cancer diagnosis. The Duke of Gloucester, Duchess of Gloucester, and Duke of Kent also featured in the top ten.
Overall royal engagements rose 22% in 2025 to 2,446, the highest in recent years. Treble noted that Charles set the pace despite his health challenges, and that the three royal siblings dominated the work year, each exceeding 300 engagements.
