Thomas Kingston was the son-in-law of Prince Michael of Kent (81), the father of Lady Gabriella, and cousin of Queen Elizabeth II (†96). He worked as a director at the financial giant Devonport Capital. Until 2011, he was also in a relationship with Pippa Middleton (40), the sister of Princess Kate (42). Despite their separation, they remained close friends and supported each other at family celebrations. Thomas leaves no children behind. Prince Charles (75) and Camilla (76) have directed their "deepest thoughts and prayers" to Lady Kingston and the family of Thomas Kingston, according to a statement from Buckingham Palace. A palace spokesperson stated that the King and Queen were informed about Thomas' death and are mourning along with those who knew him for a beloved family member.