Britain's Prince Philip, a constant presence at Queen Elizabeth II's side for decades, died Friday at age 99, Buckingham Palace announced.
The death of the Duke of Edinburgh is a profound loss for the 94-year-old monarch, who once described him as her "strength and stay all these years".
He was admitted to hospital on February 16, 2021, and went home after a month during which he was treated for a pre-existing heart condition and an infection.
Announcing his passing, BBC television played the national anthem over a picture of Philip in his prime, dressed in military dress uniform
Philip, who was by the queen's side for nearly eight decades, retired from public duties in 2017 at the age of 96.
His death came just months before his 100th birthday in June -- an event typically marked in Britain with a congratulatory message from the queen, who is now Britain's longest-serving monarch.
Philip and the queen have four children -- Charles, Anne, Andrew and Edward -- eight grandchildren and nine great-grandchildren.