LANGUET, Hubert (Hubertus Burgundus). — French statesman, b. at Vitteaux in Burgundy in 1518, d. at Antwerp on 30 Sept. 1581. Well versed in law, theology, history and the sciences, he travelled in Sweden, Italy, France and the Low Countries, maintaining especially close contact with Melanchthon, whose pernicious influence he underwent. In 1547 he apostatized to Protestantism and in the period 1560–77 became a diplomatic agent of the Elector of Saxony, first in France and then, from 1573, in the imperial county of Maximilian II, where he made himself the defender of the interests of the German Protestants.
Writings: *Historia Descriptio susceptae a Caesarea Maistate executionis contra Imperii Romani rebelles et captae urbis Gothae* (Gotha 1567); *Epistolae politicae et historicae ad Philippum Sydnaeum* (Frankfurt 1633); *Epistolae ad Joachim Camerarium patrem et Joachim Camerarium filium* (Groningen 1646); *Arcana saeculi decimisexti*; *Epistolae secretae ad principem Augustum Saxoniae ducem* (Halle 1669); *Decades tres Epistolarum Langueti, Camerarii, Cratoiti et Peuceri* (Frankfurt 1702). The *Vindiciae contra tyrannos*, a work by P. du Plessis-Mornay, is sometimes erroneously attributed to him.