- Colonel Andrew Parker-Bowles
- Mrs Jackie Stewart, wife of the racing driver
She appears at events for The Caudwell Charitable Trust, which is targeted at children with special needs, disabilities and serious illnesses. She has continued her family's long patronage of Great Ormond Street Hospital for Children and has visited on many occasions. In 2006, she took part in a special charity day for Cantor Index, whose staff were killed in the 11 September 2001 attacks. In 2007, she became patron of the Mark Davies Injured Riders Fund. To help with Sport Relief 2008, she posed for her first official royal portrait by artist Jack Vettriano. In 2009, she attended a celebrity poker tournament in Monaco in aid of Darfur, Sudan. In September 2010, she attended the 2012 London Olympic Ball alongside cousin Prince Harry of Wales. In October of the same year she attended another celebrity poker tournament, this time in London, in aid of Cancer Research UK, of which she is Royal Patron. Zara was appointed as a Member of Order of the British Empire by her grandmother in the annual New Year's Honours list in 2007 for her role in equestiansim.