Prince Philip allegedly gave his grandson Prince Harry QUITE the warning about his choice of wife back in the day! According to a royal biographer, the late Duke of Edinburgh reportedly went to the Duke of Sussex not long after he and Meghan Markle got engaged in 2017 and supposedly delivered a VERY cold tip-off about whether (or not) it was wise to date actresses... Related: Meghan Markle's Intriguing Comment About How Prince Harry 'Has My Back'! Okay, so, according to royal biographer Andrew Lownie, who wrote the book Entitled and shared an excerpt with DailyMail.