Article continues below advertisementPrince Philip left Queen Elizabeth II "heartbroken" in his final moments, OK! can reveal.Royal historian Hugo Vickers has claimed the late duke's long-standing habit of departing without saying farewell persisted until the end of his life, leaving his wife devastated after his passing.Philip, who died at age 99 in April 2021 at Windsor Castle, had been married to Elizabeth for 74 years when he died, forming one of the most enduring partnerships in modern royal history.