The Annual Review, which covers the 12 months to April, shows that Charles and Camilla undertook 769 official engagements last year.
The prince took the opportunity to apologise to those who might have been disappointed by the postponement or cancellation of official engagements last week.
Kate had to pull out of a number of royal engagements last year as she suffered with the effects of the acute morning sickness, just as she did in the early part of her pregnancy with Prince George.
The Russian President's official spokesperson has denied illness and claims of a love child but failed to give a reason for cancelling a string of high profile engagements last week.
He and other popular dancehall reggae acts were forced to cancel engagements last year in Europe and North America after protests by gay groups that their music promoted violence against homosexuals.
The good news is that Mr. Villazon, who cancelled all of his engagements last summer and fall due to a medical or vocal condition which has remained a mystery, is back on the scene, as this ecstatic account (on Opera Chic) of a recent recital he gave in Barcelona shows.
The prince has held the title of UK special representative for British trade and investment since 2001 – an unpaid role to promote British business and overseas trade – and according to his website, carried out some 600 engagements last year, including a trip to Singapore, Indonesia and India which reportedly cost £249,000.
Both Mr Pitt and Mr Herdman have cancelled speaking engagements this week.
That caused Mr. Luisi to cancel engagements next month in Rome, Genoa, Vienna and San Francisco.
It is understood that Rosenfeld has "other engagements" next week which means she is unable to attend.
He also published volumes of prose containing assortments of essays, stories, and letters, including Engagements (1972) and Taking Sides (1978).
