PRINCE PHILIP has passed away today at the age of 99.
The Duke of Edinburgh, who was admitted to hospital in February with an infection and a pre-existing heart condition, spent his final days at Windsor Castle with his wife, Queen Elizabeth.
Her Majesty announced her husband's death at midday, with Buckingham Palace releasing the following statement: "It is with deep sorrow that Her Majesty The Queen announces the death of her beloved husband, His Royal Highness Prince Philip, Duke of Edinburgh.
"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."
Philip enjoyed a 73-year marriage to The Queen, acting as her 'strength and guide' during her 69-year reign as monarch, and a man she relied on above all others.
Until his death, Philip was the longest serving consort in British history.
After carrying out more than 20,000 solo public engagements, Philip officially retired from his own programme of royal duties in 2017, at the age of 96, occasionally stepping out to support the Queen for big events.
No official details have been released yet about the Duke's funeral, but it is understood he will be given a royal ceremonial funeral rather than a state funeral, in line with his wishes.
Philip was born on the island of Corfu, Greece in 1921, and at the age of 18, he joined the Royal Navy as a cadet.
He served during the World War Two, fighting campaigns in the Indian Ocean and the Mediterranean, and was mentioned in despatches for his bravery.
His wedding with the Queen in 1947 was the nation's first big state occasiont after the Second World War.
They had four children - Charles, Anne, Andrew and Edward - and he is the grandfather of Prince William and Prince Harry among others.
The Duke's concern for young people inspired him to create the Duke of Edinburgh's Award Scheme, and he supported more than 800 charities and good causes - focusing on his interests in wildlife conservation, technology and sport.