The two national authors, from whom I have derived the most assistance, are George Pray (Dissertationes and Annales veterum Hun garorum, etc., Vindobonae, 1775, in folio) and Stephen Katona (Hist. Critica Ducum et Regum Hungariae Stirpis Arpadianae, Paestini, 1778 - 1781, 5 vols. in octavo). The first embraces a large and often conjectural space; the latter, by his learning, judgment, and perspicuity, deserves the name of a critical historian..