Popsugar Celebrity The Royals Kate Middleton and Zara Tindall Pictures The Duchess of Cambridge and Zara Tindall's Royally Cute Friendship, in Pictures 27 June 2019 by Kelsie Gibson Image Source: Getty / Max Mumby/Indigo The Duchess of Cambridge has developed friendships with different members of the royal family over the years, but few compare to her friendship with Zara Tindall. Since Kate first joined the royal family in 2011, she has developed a close bond with Prince William's cousin. The two are often spotted hanging out at royal get-togethers, including this year's Royal Ascot, and Kate always seems to have a huge grin on her face whenever she's chatting with Zara. Perhaps they share some inside jokes with each other? While Kate and Zara get along swimmingly, their oldest kids are also of a similar age; Kate's son Prince George was born in June 2013, while Zara's daughter Mia was born in January 2014. In fact, Zara is the godmother of Prince George. See some of Kate and Zara's cutest friendship moments ahead, then see who else is in Kate's top-secret squad. Related: 46 Photos That Prove the Royal Family Is Totally Smitten With Zara Tindall Kate Middleton and Zara Tindall at Royal Ascot in 2017 Image Source: Getty / Chris Jackson 1 / 9 Kate Middleton and Zara Tindall at Coronation Service in 2013 Image Source: Getty / LEON NEAL 2 / 9 Kate Middleton and Zara Tindall at Princess Diana Benefit Concert in 2007 Image Source: Getty / Anwar Hussein 3 / 9 Kate Middleton and Zara Tindall at Royal Ascot in 2017 Image Source: Getty / Max Mumby/Indigo 4 / 9 Kate Middleton and Zara Tindall at Royal Ascot in 2019 Image Source: Getty / Karwai Tang 5 / 9 Kate Middleton and Zara Tindall at Diamond Jubilee Concert in 2012 Image Source: Getty / Anwar Hussein 6 / 9 Kate Middleton and Zara Tindall at Easter Sunday Church Service in 2019 Image Source: Getty / Max Mumby/Indigo 7 / 9 Kate Middleton and Zara Tindall at the Rundle Cup in 2006 Image Source: Getty / Antony Jones 8 / 9 Kate Middleton and Zara Tindall at Royal Ascot in 2019 Image Source: Getty / Max Mumby/Indigo 9 / 9 The RoyalsThe British RoyalsZara PhillipsKate Middleton