British Royals Attends the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall holds onto daughter Mia Tindall as he kisses wife Zara Tindall after she competes in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall, Mia Tindall and Princess Anne, The Princess Royal attend the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall, Mia Tindall and Princess Anne, The Princess Royal attend the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall holds onto daughter Mia Tindall as he kisses wife Zara Tindall after she competes in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England. 

 Mike Tindall holds onto daughter Mia Tindall as she embraces her grandmother Princess Anne, The Princess Royal as they attend the Badminton Horse Trials on May 7, 2016 in Badminton, England. 

Mike Tindall carries daughter Mia Tindall after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall holds onto daughter Mia Tindall as she embraces her grandmother Princess Anne, The Princess Royal as they attend the Badminton Horse Trials on May 7, 2016 in Badminton, England. 

Mike Tindall carries daughter Mia Tindall after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall carries daughter Mia Tindall after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall carries daughter Mia Tindall after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

 Mike Tindall carries daughter Mia Tindall (holding a riding crop) on his shoulders after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England. 

Mike Tindall carries daughter Mia Tindall after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall carries daughter Mia Tindall (holding a riding crop) on his shoulders after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall carries daughter Mia Tindall (holding a riding crop) on his shoulders after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall carries daughter Mia Tindall (holding a riding crop) on his shoulders after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England. 

Mike Tindall carries daughter Mia Tindall (holding a riding crop) on his shoulders after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall carries daughter Mia Tindall after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England. 

Mike Tindall carries daughter Mia Tindall (holding a riding crop) on his shoulders after watching Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall rides her pushbike around the Badminton Horse Trials before competing in the cross country phase of the event on May 7, 2016 in Badminton, England.

Savannah Phillips, Isla Phillips, Peter Phillips, Autumn Phillips look on as Vice Admiral Sir Timothy Laurence holds granddaughter Mia Tindall upside down as they attend the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Mike Tindall carries daughter Mia Tindall as he talks with wife Zara Tindall after she competed in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

 Autumn Phillips looks on as Vice Admiral Sir Timothy Laurence holds granddaughter Mia Tindall upside down as they attend the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall carries daughter Mia Tindall after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall carries daughter Mia Tindall after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Isla Phillips, Peter Phillips, Autumn Phillips and Mia Tindall watch Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall picks up daughter Mia Tindall after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall carries daughter Mia Tindall after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

 Zara Tindall warms up on her horse High Kingdom before competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall kisses daughter Mia Tindall after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall talks with her mother Princess Anne, The Princess Royal after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall warms up on her horse High Kingdom before competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall warms up on her horse High Kingdom before competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Autumn Phillips looks on as Vice Admiral Sir Timothy Laurence holds granddaughter Mia Tindall upside down as they attend the Badminton Horse Trials on May 7, 2016 in Badminton, England. 

Zara Tindall talks with her mother Princess Anne, The Princess Royal after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England. 

Zara Tindall rides her pushbike around the Badminton Horse Trials before competing in the cross country phase of the event on May 7, 2016 in Badminton, England.

Zara Tindall rides her pushbike around the Badminton Horse Trials before competing in the cross country phase of the event on May 7, 2016 in Badminton, England.

Princess Anne, The Princess Royal applauds as she watches the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Princess Anne, The Princess Royal applauds as she watches the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

 Mike Tindall carries daughter Mia Tindall as he talks with wife Zara Tindall after she competed in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

 Zara Tindall talks with her mother Princess Anne, The Princess Royal after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall carries daughter Mia Tindall after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall talks with her mother Princess Anne, The Princess Royal after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall talks with her mother Princess Anne, The Princess Royal after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall rides her pushbike around the Badminton Horse Trials before competing in the cross country phase of the event on May 7, 2016 in Badminton, England

Zara Tindall rides her pushbike around the Badminton Horse Trials before competing in the cross country phase of the event on May 7, 2016 in Badminton, England.

Savannah Phillips, Isla Phillips, Peter Phillips, Autumn Phillips and Mia Tindall watch Zara Tindall compete in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England.

Zara Tindall kisses daughter Mia Tindall after competing in the cross country phase of the Badminton Horse Trials on May 7, 2016 in Badminton, England. 

Camilla, Duchess of Cornwall presents William Fox-Pitt with an Armada dish (for completing the Badminton Horse Trials 5 times) as they attend the Badminton Horse Trials on May 8, 2016 in Badminton, England.

Camilla, Duchess of Cornwall presents the Rolex Grand Slam of Eventing Trophy to Michael Jung after he won the Badminton Horse Trials following wins at Burghley and Kentucky on May 8, 2016 in Badminton, England. 

(L-R) Camilla, Duchess of Cornwall and Miranda, Duchess of Beaufort attend the Badminton Horse Trials on May 8, 2016 in Badminton, England

Camilla, Duchess of Cornwall attends the Badminton Horse Trials on May 8, 2016 in Badminton, England.

Camilla, Duchess of Cornwall holds the Rolex Grand Slam of Eventing Trophy before presenting it to Michael Jung after he won the Badminton Horse Trials following wins at Burghley and Kentucky on May 8, 2016 in Badminton, England. 

Camilla, Duchess of Cornwall talks with the Rolex Grand Slam of Eventing winner Michael Jung after he won the Badminton Horse Trials following wins at Burghley and Kentucky on May 8, 2016 in Badminton, England.

Mia Tindall (r) and cousin Isla Phillips lark about as they attend the Badminton Horse Trials on May 8, 2016 in Badminton, England.