After doing some research work at Simancas in Spain, he became professor of history at the university of Dorpat in 1867; and was then in turn professor at Konigsberg, Bonn and Leipzig.
He worked diligently at original manuscript authorities at Simancas, the Record Office and Hatfield House; but he used his materials carelessly, and evidently brought to his investigation of them a mind already made up as to their significance.
Hume's Great Lord Burghley (1898) is largely a piecing together of the references to Burghley in the same author's Calendar of Simancas MSS.
1898); Calendar of Letters and State Papers relating to English Af f airs, principally in the Archives at Simancas (vols.
Of State Papers Simancas, iii.
Sigonius's VitaAndreaeDoriae (1576) may be mentioned; see also "Documenti ispano-genovesi del1'Archivio di Simancas" in the Atti della Societd ligure di Storia patria, vol.