Britain's Prince Philip, a stalwart supporter of his wife, Queen Elizabeth II, for over seven decades, died Friday. He was 99.

"It is with deep sorrow that Her Majesty The Queen announces the death of her beloved husband, His Royal Highness The Prince Philip, Duke of Edinburgh," Buckingham Palace said in a statement Friday. "His Royal Highness passed away peacefully this morning at Windsor Castle. Further announcements will be made in due course. The Royal Family join with people around the world in mourning his loss."

The Duke of Edinburgh was known as one of the hardest-working members of the royal family during his tenure alongside the country's longest-reigning monarch. Philip married then-Princess Elizabeth in 1947 and fulfilled thousands of royal duties.

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At age 96 in August 2017, Prince Philip retired from official royal duties with the "full support of the queen," according to Buckingham Palace. He completed 22,219 solo engagements since 1952, gave 5,496 speeches in his travels to more than 76 countries, authored 14 books, served as patron to 785 organizations, and made 637 solo overseas visits, Buckingham Palace said.

Even after his official retirement, Prince Philip still appeared at Queen Elizabeth's side for events like Remembrance Sunday, but took a step back and spent more time at Windsor Castle and Wood Farm on the Sandringham Estate to enjoy painting, carriage riding, and his other hobbies.

Prince Philip and Queen Elizabeth married in 1947 and marked their 73rd wedding anniversary on Nov. 20, 2020.

Source: ABC News

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