Here we look back at some of those memories of Prince Philip in pictures.
5. The Queen & Duke Of Edinburgh Visit Northern Ireland
BELFAST, NORTHERN IRELAND - JUNE 28: Queen Elizabeth II & Prince Philip, Duke Of Edinburgh attend the unveiling of the Robert Quigg VC memorial statue in Bushmills village on June 28, 2016 in Bushmills, Northern Ireland. (Photo by Carrie Davenport/Getty Images) Photo: Getty Images Europe
6. The Queen & Duke Of Edinburgh Visit Northern Ireland
BELFAST, NORTHERN IRELAND - JUNE 28: Queen Elizabeth II & Prince Philip, Duke Of Edinburgh attend the unveiling of the Robert Quigg VC memorial statue in Bushmills village on June 28, 2016 in Bushmills, Northern Ireland. (Photo by Carrie Davenport/Getty Images) Photo: Getty Images Europe
7. Queen Elizabeth II And Duke Of Edinburgh Visit Northern Ireland - Day 3
COLERAINE, NORTHERN IRELAND - JUNE 25: Prince Philip, Duke of Edinburgh leaves after the launching of the World War One commemorations, on the third and final day of the Queen's visit to Northern Ireland, on June 25, in Coleraine, Northern Ireland. (Photo by Paul Faith - WPA Pool/Getty Images) Photo: Getty Images Europe
8. Queen Elizabeth II And Duke Of Edinburgh Visit Northern Ireland - Day 3
COLERAINE, NORTHERN IRELAND - JUNE 25: Prince Philip, Duke of Edinburgh leaves after the launching of the World War One commemorations, on the third and final day of the Queen's visit to Northern Ireland, on June 25, in Coleraine, Northern Ireland. (Photo by Paul Faith - WPA Pool/Getty Images) Photo: Getty Images Europe