Personal life
Phillips first met his future wife, Princess Anne, at a party for horse enthusiasts in 1968. They married on 14 November 1973 at Westminster Abbey. They have two children: Peter (born 1977) and Zara (born 1981). The Queen bought Gatcombe Park, near Minchinhampton, for the couple as a wedding present.
In August 1989, Phillips and Anne announced their intention to separate, as the marriage had been under strain for several years. The couple had rarely been seen in public together and had been romantically linked with other people. They continued to share custody of their children and initially stated that "there were no plans for divorce." During this period, Phillips continued to work at the couple's estate at Gatcombe Park. In 1991, a DNA test confirmed that he had fathered a daughter, Felicity Tonkin, born in August 1985 in New Zealand to art teacher Heather Tonkin. Phillips and Anne divorced on 23 April 1992.
On 1 February 1997, Phillips married Sandy Pflueger, an American Olympic dressage rider. Their daughter, Stephanie, was born on 2 October 1997. She grew up at Aston Farm, Gatcombe Park, close to the family of Anne, and served as a bridesmaid at the wedding of her half-sister Zara. In 2000, Phillips was appointed an Honorary Liveryman of the Worshipful Company of Farmers.
On 3 May 2012, Phillips' solicitors confirmed that he and Pflueger had separated and intended to divorce, with Phillips becoming involved with American equestrian Lauren Hough.
Phillips' personal wealth is estimated to be around £15–20 million. The settlement he received when his marriage to Anne ended was described as "modest" and reported to be around "$3 million".
On 19 September 2022, Philips was present at the committal service at St George's Chapel for his former mother-in-law Queen Elizabeth II.