Prince Philip was an outspoken royal who never held back: butler Grant Harrold, who has written a book titled "The Royal Butler: My Remarkable Life in Royal Service," spoke to Fox News Digital about his encounters with the late Duke of Edinburgh. NEW You can now listen to Fox News articles! Prince Philip was known for firing off swear-filled remarks — and palace staff quickly learned to keep up. Grant Harrold, King Charles III’s former butler, has written a memoir,  "The Royal Butler: My