Queen Elizabeth II and Prince Philip were married for an incredible 73 years. Despite their enduring relationship, the late Queen and her husband rarely engaged in PDA. According to one royal biographer, there's a tragic reason why Elizabeth and Philip weren't overly affectionate with one another.
Writing in his book, The Queen: 70 Chapters in the Life of Queen Elizabeth II, royal author Ian Lloyd shared, "When their relationship finally blossomed during the summer of 1946, the couple gave few clues away, even to those close to them."
