CNN: Prince Philip, Duke of Edinburgh, dead at 99

In a statement, the palace said: "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."

The Duke was admitted to a London hospital on February 17 after feeling unwell.

CNN recalled the Duke supported a number of philanthropic endeavours and was associated with around 800 organisations. He founded the Duke of Edinburgh Awards Scheme, a youth development program that operates in more than 130 countries and territories worldwide.

He and Elizabeth had four children: Charles, Anne, Andrew and Edward.