Chateau La Rocque

source: DailyMail

It has emerged that the Duke and Duchess of Cambridge and their
children George and Charlotte stayed at a chateau owned by Michael Green- previous employer of ex P.M. David Cameron. 

A quote from the Daily Mail:

"The Duke and Duchess of Cambridge have holidayed in a stunning French chateau owned by the media boss who first employed David Cameron.

Prince William and Kate spent part of their recent summer break in the 16th-century holiday home of Michael Green, who has a £103million fortune. 

The couple, along with their children Prince George, three, and one-year-old Princess Charlotte, enjoyed a ten-day break at Chateau La Rocque, in the village of Pouydraguin, west of Toulouse.

It is not clear whether the couple paid to stay in the chateau or whether they were lent it."