The businessman, who turns 49 on Nov. 15, 2026, is the eldest son of Princess Anne and her ex-husband Mark Phillips

Princess Anne and Peter PhillipsCredit: Indigo/Getty
Princess Anne and Peter Phillips
Credit: Indigo/Getty

Although Peter Phillips was born into royalty, his mom, Princess Anne, wanted to give him as normal a life as possible.

Anne and her ex-husband Mark Phillips welcomed their firstborn on Nov. 15, 1977, giving Queen Elizabeth her first grandchild. He grew alongside his sister Zara, born in 1981, as well as Princess Diana and Prince Charles’s sons, William (born in 1982) and Harry (born in 1984). Unlike their cousins, Peter and Zara did not have royal titles, a decision made by Anne.

“I think it was probably easier for them, and I think most people would argue that there are downsides to having titles,” she told Vanity Fair in 2020. “So I think that was probably the right thing to do.”

In celebration of Peter’s 49th birthday, see his rare photos with his mother over the years.

01 of 10

Baby Blue

Queen Elizabeth, Princess Anne and Peter PhillipsCredit: Hulton Archive/Getty
Queen Elizabeth, Princess Anne and Peter Phillips
Credit: Hulton Archive/Getty

The Queen greeted a newborn Peter, cradled in Anne’s arms, at the baby’s christening in December 1977.

02 of 10

Walk in Nature

Princess Anne, Peter Phillips and Queen ElizabethCredit: Keystone-France/Gamma-Keystone via Getty
Princess Anne, Peter Phillips and Queen Elizabeth
Credit: Keystone-France/Gamma-Keystone via Getty

A 2-year-old Peter went on a walk with his mother and grandmother around the royal family’s private home in Balmoral, Scotland.

03 of 10

Horsin’ Around

Princess Anne, Peter Phillips and Zara PhillipsCredit: Tim Graham Photo Library via Getty
Princess Anne, Peter Phillips and Zara Phillips
Credit: Tim Graham Photo Library via Getty

A family of equestrians, Anne and her kids can often be seen watching horsing events like the Windsor Horse Trials in the ‘80s….

04 of 10

Matching Moment

Peter Phillips, Princess Anne and Zara PhillipsCredit: Tim Graham Photo Library via Getty
Peter Phillips, Princess Anne and Zara Phillips
Credit: Tim Graham Photo Library via Getty

…and the Royal Windsor Horse Show in 1984, where they coordinated in blue.

05 of 10

Golden Years

Princess Anne and Peter PhillipsCredit: Andrew Parsons - PA Images/PA Images via Getty
Princess Anne and Peter Phillips
Credit: Andrew Parsons – PA Images/PA Images via Getty

Peter sat next to his uniformed mother during the Queen’s Golden Jubilee in honor of her 50 years on the throne.

06 of 10

A Better Look

Zara Phillips, Peter Phillips and Princess AnneCredit: Tim Graham Photo Library via Getty
Zara Phillips, Peter Phillips and Princess Anne
Credit: Tim Graham Photo Library via Getty

Peter, Zara and Anne looked enthralled by the action at the National Hunt Festival at Cheltenham Races in 2004.

07 of 10

Spectators to the Side

Princess Anne and Peter PhillipsCredit: Indigo/Getty
Princess Anne and Peter Phillips
Credit: Indigo/Getty

Anne and Peter cheered on Zara — who took after her mother as an equestrian — as she competed in the show jumping phase of the Festival of British Eventing in 2010.

08 of 10

Behind You!

Peter Phillips and Princess AnneCredit: Cuthbert/Getty
Peter Phillips and Princess Anne
Credit: Cuthbert/Getty

In 2019, the mother-son duo spent some quality time at the Land Rover Novice and Intermediate Horse Trials in Stroud, England.

09 of 10

Scoping Mechanism

Peter Phillips and Princess AnneCredit: Max Mumby/Indigo/Getty
Peter Phillips and Princess Anne
Credit: Max Mumby/Indigo/Getty

Anne and Peter watched the race from the Royal Box’s balcony during the Cheltenham Festival’s Gold Cup Day in 2024.

10 of 10

Beloved Kids

Princess Anne, Harriet Sperling and Peter PhillipsCredit: Chris Jackson/Getty
Princess Anne, Harriet Sperling and Peter Phillips
Credit: Chris Jackson/Getty

Naturally, Anne, Peter and his wife Harriet Sperling had a family outing on the opening day of the Royal Ascot in 2025.

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