Casement, Roger David (1864–1916)

Roger Casement appearing at Bow Street magistrates' court charged with treason. A former British diplomat, Casement was an ardent supporter of Irish Home Rule; he was captured off the Irish coast, having disembarked from a German submarine at the start of the Easter Rising in April 1916.

British diplomat and Irish revolutionary. While in the British consular service, he exposed the ruthless exploitation of the people of the Belgian Congo and Peru, for which he was knighted in 1911 (degraded 1916). He was hanged for treason by the British for his involvement in the Irish nationalist cause.

Born in County Dublin, Casement joined the British consular service in 1892. He gained an international reputation and was knighted for his reports on the exploitation of plantation workers by Europeans in the Congo and Peru. However, in 1904 he joined the Gaelic League and upon his retirement in 1913, joined the Irish Volunteers. In 1914 he made his way to Berlin in the hope of raising German support for Irish independence and tried to recruit for an Irish Brigade among British prisoners in Germany. In 1916 he was captured in Ireland, having returned there in a German submarine in the hope of postponing a rebellion. He was sentenced to death and executed as a traitor in August 1916 in spite of appeals for clemency from, among others, Sir Arthur Conan Doyle. British government agents circulated details of his diaries, which revealed an active homosexual private life, in the attempt to discredit him. His remains were returned to Ireland in 1965.