Proper noun
English Wikipedia has an article on:Crown EstateWikipedia
Crown Estate
A UK public body that manages a portfolio of property owned by the monarch in right of Crown.
“But then the rug was pulled from under their feet, and they had to ask Prince Charles to step in. That’s the reason why they are now able to start paying back the queen and the Crown Estate, who met the cost of the building work out of public funds.” Source: Internet
In another recent post one commenter was suggesting that the cost of becoming a republic would be astronomical because the state would lose the Crown Estate, the palaces and the royal art collection (among other things). Source: Internet