Gustav Bergenroth, a German-English historian, born in Prussia in 1813, died in Madrid in February, 1869. He was assessor to the high court of Berlin from 1843 to 1848, when he joined the extreme liberals. After the revolution of 1848 he went to the United States, wrote an account of a vigilance committee to which he belonged in California in 1850, and after several voyages across the Atlantic settled in England in 1856, with the object of collecting from the record office materials for the history of the Tudors. The master of the rolls commissioned him to report on the important discoveries in the archives of Siman-cas, and he pursued his task amid great difficulties at Simancas and in London, Brussels, and Madrid. He edited several volumes in the "Calendar of the State Papers" (London, 1870-171), under the direction of the master of the rolls, and was still prosecuting his researches when he died. He also wrote an essay on Wat Tyler, the story of Queen Joanna for the supplementary volume of the "Calendar of Spanish Papers," and the abstract of D'Avila's account of the murder of Don Carlos by Philip II. Mr. W. C. Cartwright published in 1870 a "Memorial Sketch of Bergenroth."