Here we look back at some of those memories of Prince Philip in pictures.
13. Queen Elizabeth II And Duke Of Edinburgh Visit Northern Ireland
COLERAINE, NORTHERN IRELAND - JUNE 25: (EDITORIAL USE ONLY, NO SALES) In this handout image provided by Harrison Photography, Prince Philip, Duke of Edinburgh waves as he arrives to attend a service at the war memorial on June 25, 2014 in Coleraine, Northern Ireland. The Royal party are visiting Northern Ireland for three days. (Photo by simon graham/Harrison Photography via Getty Images) Photo: Getty Images Europe