Bukingham Palace has announced the Duke of Edinburgh, 95, is to step down from royal duties later this year.
Here, we take a look at a selection of images from some his visits to Northern Ireland.
The Duke of Edinburgh with the Queen at the Giant's Causeway in 2016. The Queen and Duke of Edinburgh pictured at Lisburn during their three day State Visit to Northern Ireland in July 1953.Prince Philip at Hillsborough CastleThe Queen and Prince Philip at Belfast International AirportPrince Philip and the Queen chat with former Irish President Mary McAleesePrince Philip at Hillsborough CastleThe Duke of Edinburgh with former Taoiseach Bertie AhernThe Duke of Edinburgh and the Queen in Belfast with former Secretary of State Theresa Villiers (left) and Dame Mary Peters.Elizabeth II and the Duke of Edinburgh arrive at Crumlin Road Gaol, Belfast, on a visit to Northern Ireland in 2014
