Edward Henry Carson, Baron Carson, PC, PC (Ire), KC (9 February 1854 – 22 October 1935), from 1900 to 1921 known as Sir Edward Carson, was an Irish unionist politician, barrister and judge, who was the Attorney General and Solicitor General for England, Wales and Ireland, as well as the First Lord of the Admiralty for the Royal Navy of Great Britain. His authority as a unionist leader saw him elevated to the British War Cabinet as a Minister without Portfolio in 1917, and he was subsequently appointed as a life peer in the House of Lords in 1921, taking office under the political title Lord Carson of Duncairn. Due to his political campaigns in both Great Britain and Ireland, he became widely regarded as one of the founding figures of Northern Ireland.
From 1905 onwards, Carson was both the Irish Unionist Alliance member of parliament (MP) for the Dublin University constituency and leader of the Ulster Unionist Council in Belfast. In 1915, he entered the war cabinet of H. H. Asquith as Attorney-General. However, he was defeated in his ambition to maintain Ireland as a whole in union with Great Britain. Carson was instrumental in leading the Ulster unionist resistance against the British crown's attempts to introduce home rule for the whole of Ireland, and later played a key role in forcing the resignation of Prime Minister Asquith in 1916. His leadership, however, was celebrated by some for securing a continued place in the United Kingdom for the six northeastern counties, albeit under a devolved Parliament of Northern Ireland that neither he nor his fellow unionists had sought.