The story behind Andrew Prince Andrew is no longer a prince . Great Britain bounced his behind royally. The new commoner had to leave his 30-room mansion so maybe next summer he’ll scour Quogue for a Hamptons share. Andrew Lownie’s new book, “Entitled: The Rise and Fall of the House of York,” details the Jeffrey Epstein/Virginia Giuffre case . So, if you see handy Andy and shout “Hey, Prince” you’ll be summoning his dog. Lownie: “I read history at Cambridge, did a doctorate in Edinburgh