The couple have been married for 12 years. They said in a statement that they informed their family of their decision last year, Reuters reports.
Peter, Princess Anne‘s eldest child, and Autumn share two children — Savannah, 9, and seven-year-old Isla.
“They had reached the conclusion that this was the best course of action for their two children and ongoing friendship,” a spokesperson for the royal couple said.
“The decision to divorce and share custody came about after many months of discussions and although sad, is an amicable one. The couple’s first priority will remain the continued well-being and upbringing of their wonderful daughters Savannah and Isla.”
Buckingham Palace hasn’t commented on the matter, though the statement revealed that both families were saddened by the news.
The 42-year-old Peter met Autumn in her hometown of Montreal while attending the city’s Grand Prix in 2003. At the time, he was working for the Formula 1 racing team BMW Williams. She was working at the BMW hospitality suite.
Both Peter and Autumn have no royal titles because of Princess Anne’s decision to decline the courtesy offered to her by the Queen. Anne’s decision is said to have been made to allow her children, including equestrian Zara Tindall, a more normal life.
This latest royal news follows Harry and Markle’s announcement that they’d be stepping away from their senior royal duties, giving up their Royal Highness titles and spending part of their time living in Canada.
—With files from Reuters