In a statement, Buckingham Palace said: “His Royal Highness passed away peacefully this morning at Windsor Castle.”
Here’s a look back at his life in pictures.
An undated photo of Philip as a student | AFP via Getty Images
Philip practices his batting on July 31, 1947, prior to his marriage to then-Princess Elizabeth | Douglas Miller/Keystone/Getty Images
Philip, then a lieutenant, at the Royal Naval Officers’ School at Kingsmoor, Wiltshire, England in 1947 | PNA Rota/Keystone/Getty Image
The royal wedding, held on November 20, 1947 | Stringer via Getty Images
Elizabeth and Phillip on their honeymoon at Broadlands, Hampshire in November 1947 | AFP via Getty Images
Elizabeth and Philip at Highclere Castle, Hampshire, in 1958 | Victor Blackman/Daily Express/Hulton Archive/Getty Images
Prince Charles and the Duke of Edinburgh at Sandringham in 1969 | Central Press/Hulton Archive/Getty Images
At Longchamp racecourse, Paris, in 1972 | Staff photo for AFP via Getty Images
Philip walks with Prince William, Prince Harry, Charles Spencer and the Prince of Wales behind the coffin of Diana, Princess of Wales, in London on September 6, 1997 | Thomas Coex/AFP via Getty Images
The Duke of Edinburgh at the Royal Court Youth Theatre in Central London in 1999 | Sinead Lynch/AFP via Getty Image
Former South African President Nelson Mandela with the Duke of Edinburgh, near Cape Town, in November 2000 | Anna Zieminski/AFP via Getty Images
Elizabeth and Philip arrive at an Iraq War memorial service on October 10, 2003 | Scott Barbour/Getty Images
The queen and the Duke of Edinburgh on June 17, 2006, ahead of the traditional Trooping the Colour parade | Chris Young/AFP via Getty Images
Philip, the Duke and Duchess of Cambridge and the future Duke and Duchess of Sussex attend the royal family’s traditional Christmas Day church service at St. Mary Magdalene Church in Sandringham, Norfolk, on December 25, 2017 | Adrian Dennis/AFP via Getty Image