Their father, Captain Mark Phillips, was not given a royal title when he married Princess Anne in 1973, so Peter and Zara are not a prince and princess.
The siblings have been able to carve out their own careers and have followed in their sporty parents' footsteps, with Peter as head of partner acquisition for the sports and entertainment rights agency CSM Sport & Entertainment, and Zara, an accomplished equestrian.
Peter shares two daughters, Savannah, 12, and Isla, 11, with his former wife, Autumn, while Zara and her husband, Mike Tindall, have Mia, nine, Lena, five, and two-year-old Lucas.
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HELLO! take a look back at some of Peter and Zara's sweetest childhood snaps together.
Both Peter and Zara attended the Port Regis School in Dorset, and followed in their family's footsteps by continuing their education at Gordonstoun in Scotland. The siblings also both completed their degrees at the University of Exeter
Zara and Peter riding a carriage at the Royal Windsor Horse Show in 1992
The pair have always had a love for equestrian sports from an early age, and they look quite the experts during a carriage ride in 1992.
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