On 27 August 1979, Lord Mountbatten, great uncle to Prince Charles, was killed by an IRA bomb that detonate in his boat off the coast of Mullaghmore, Sligo.
Three others were killed on the boat that day, including two teenage boys.
These events have been re-examined this week following the release of Season 4 of The Crown on Netflix.
As fans of the drama will know, the show accurately portrays the seismic impact that Lord Mountbatten (played by Charles Dance) had on the formative years of Prince Charles (played by Josh O'Connor).
Our reporter Barry Whyte has been looking back on what locals in the seaside village in Co Sligo remember about that day in August 1979….