Zara Tindall and Peter Phillips' other sibling who lives life under the radar

and have a half-sister from their father's relationship with Hawaiian equestrian Sandy Pflueger following his divorce from Princess Anne in 1992.

Stephanie Phillips was born in October 1997, well before her parents announced their split in 2012.

Despite being related to the late Queen's two eldest grandchildren, Stephanie has kept a low profile and

The now-27-year-old previously attended the prestigious Dean Close School in Cheltenham, before studying business management at university.

As reported by the , Stephanie grew up at Aston Farm on the Gatcombe Estate -

Her social media profiles highlight her shared love of horses and riding - much like Zara, who has carved out a career as a professional equestrian.

Like his elder daughter Zara, Mark was an Olympic gold medal-winning horseman for Great Britain.

Her mother Sandy was also part of the US Olympic dressage team at the 1984 Olympic games in Los Angeles.

Stephanie, herself, has also carved out a career as an equestrian and has competed at Barbury International, Wellington International Horse Trials and the West Wiltshire trials.

Stephanie appears to share a close bond with her half-siblings.

She acted as a flower girl at Zara's wedding to in 2011 and also appeared at Peter's wedding to Autumn Kelly back in 2008.

At her wedding in 2022, Stephanie had Peter's daughters Savannah, 13, and Isla, 12, and Zara's daughters Mia, 10, and Lena, 6, as her flower girls.