//Another mouth for the taxpayer to feed //
the duke of sussex (and now his family) derives his income from the duchy of cornwall, not the privy purse (as does the rest of the immediate family of the monarch's eldest son). the duchy was set up in 1337 to provide for the prince of wales, who doesn't own the duchy's assets and can only receive proceeds accruing. only a male heir apparent can be duke of cornwall, so when there is none, the proceeds of the duchy revert to the crown, and the sovereign grant is reduced by a corresponding amount. the prince of wales pays income tax on earnings from the estate; the estate is not a corporation so is exempt from corporation tax. the prince of wales pays no capital gains tax as he is not entitled to the capital assets.