Anne, 70, is the only daughter of the Queen and Prince Philip.
In celebration of her 70th birthday on August 15, the Royal Family shared some insight into her Princess Royal title.
The Royal Family wrote on their Instagram account: “HRH The Princess Anne was named The Princess Royal, a title traditionally bestowed upon the eldest daughter of The Sovereign, in 1987.
“HRH is the seventh Princess Royal, following Princess Mary, the only daughter of King George V.”
