One of those royals is Zara Tindall, who keeps a low profile on the social media site with her private account, @zp176.
The handle has a concealed sweet meaning, with the ‘z’ referring to her first name, Zara, while the ‘p’ refers to her maiden name, Phillips.
The ‘176’ is in reference to the team number she was given when she first started representing the United Kingdom as an equestrian.
Her handle also shares the name with the equestrian clothing brand she designed with Musto Outdoors Clothing in 2010.
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The royal appears to be an active user on the site, with her profile having shared over 420 posts, and boasting 197 followers, who are presumably just friends and family.
Royals including Zara’s husband Mike Tindall and Princess Beatrice’s husband, Edoardo Mapelli Mozzi, all appear to follow Zara on Instagram.
The mum-of-three also has a sweet profile picture for her account, which features the royal kissing one of the horses that she rode in competition, with a gold medal around its neck.
Zara was recently spotted on Instagram as she and Mike Tindall joined close friend Storm Keating to celebrate her 40th birthday.
The couple looked stunning for the milestone occasion, with Princess Anne’s daughter opting for a pair of gorgeous leather mini shorts and a gold and black blouse.
To complete the look, the equestrian wore black tights and her short hair in loose waves, while Mike looked dapper in a suit.
Zara’s brother, Peter Phillips, also has his own private social media account and goes by the name @pedrophillips15.
Although he does not have a profile picture, the dad-of-two has shared over 150 posts.
Sarah Ferguson, the mother of Princesses Beatrice and Eugenie, follows Peter on Instagram.
Peter’s estranged wife Autumn Phillips, née Autumn Kelly, who he quietly split from in September 2019, also has a private account under the handle @densilkelly.
Autumn also is followed by Sarah, the Duchess of York.
The ex-couple, Peter and Autumn, are currently co-parenting their two young daughters, Savannah, 10, and Isla, nine.