The palace shed a little light on the cost of running the official life of Prince William and Princess Kate Tuesday – and it's Prince Charles who largely foots the bill.
The staff, travel and official wardrobes for William, Kate and Prince Harry are covered by Charles, who uses a small portion of a fund totaling $4.6million.
The future king, 66, pays for his official life by drawing an income from the Duchy of Cornwall, a massive estate given to the heir to the throne to fund his official and private livelihoods. That income in the year to March 31 was $31.1 million, a rise of 1.7 percent, his office at Clarence House says in its annual report out Tuesday.
"We can't identify how much of it is allocated to their office," the palace source tells PEOPLE, adding that unlike in previous years, it has not been possible to break down specific costs, such as Kate's amazing wardrobe.
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The $4.6 million also does not account for the costs of refurbishments at William and Kate's country home, Anmer Hall. The estate was given to the couple by the Queen, 89, and the family pays for the renovations and upkeep privately.
Nor does Charles's official budget cover the couple's personal staff – including nanny Maria Turrion Borrallo and new Anmer Hall housekeeper Sadie Rice.
Much of the couple's major travel, to Australia and New Zealand, was covered by the countries they visited. But William's week-long tour to Japan and China in February and March cost $109,000 in scheduled flights, and he and Kate's trip to New York City in December came in at $26,600.
And Prince Harry and his staff paid $135,000 for his flights (both scheduled and charter) to Brazil and Chile last June.
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