On August 3rd, 1916, Roger Casement was executed for his part in the 1916 Rising.
See After The Rising for more information.
Born in 1864 in Dublin, Roger Casement received a knighthood for his services to the British consulate, having campaigned tirelessly to expose the cruelty inflicted on native workers in the Belgian Congo in 1904, and again in Brazil from 1911-1912. Casement had become a member of the Gaelic League in 1904, and began to write nationalist articles under the pseudonym ‘Seán Bhean Bhocht’. He retired from the British consular service in 1913, joining the Irish Volunteers. Based on his previous experience, Casement was dispatched to Germany to recruit a Brigade from Irish prisoners of war. He returned to Ireland in a German U-boat but was captured in Kerry on Good Friday in 1916. Casement was imprisoned in Pentonville Gaol in London, where he was tried on charges of High Treason. He was executed on 3 August 1916, the only leader of the Rising to be executed outside of Ireland. He was 52 years old.