Henry Edward John Stanley, 3rd Baron Stanley of Alderley and 2nd Baron Eddisbury (11 July 1827 – 11 December 1903), was a historian who translated The first voyage round the world by Magellan and other works from the Age of Discovery. A convert to Islam, in 1869 Lord Stanley became the first Muslim member of the House of Lords.
In 1862 he converted to Islam and may have adopted the name Abdul Rahman. Lord Stanley was the first Muslim member of the House of Lords, inheriting his titles in 1869 upon the death of his father, Edward John Stanley, 2nd Baron Stanley of Alderley. His mother, Henrietta Stanley, Baroness Stanley of Alderley, was an English educationist, while his sister Katharine was the mother of Bertrand Russell. His younger brother Edward Lyulph Stanley succeeded him.
As alcohol is forbidden in Islam, he apparently ordered the closure of all public houses on his estate in Nether Alderley, south of Alderley Edge (then named Chorley). Despite his new faith, he funded the restoration on Anglesey of St Mary's Church, Bodewryd, Llanbadrig Church in Cemaes,St Dona's Church, Llanddona and St Peirio's Church, Rhosbeirio.
He took part in three marriage ceremonies with Fabia, daughter of Santiago Federico San Roman of Seville — firstly in 1862, secondly on 6 November 1869 at the registry office of the parish of St George's, Hanover Square and finally on 15 May 1874 at the Roman Catholic Church of St Alban, Macclesfield. Although she was apparently received as his wife in the UK, Fabia turned out to be identical to Serafina Fernandez y Funes, of Alcandete, Jaén, Spain, who had, on 30 September 1851 married Ramon Peres y Abril (died 16 May 1870), so that the first two marriage ceremonies were bigamous.