BERTOLDO of Henneberg. — Archbishop and Elector of Mainz, b. in 1441, d. 21 Dec. 1504. In 1484 he was appointed Archbishop of Mainz and consecrated by Innocent VIII on 20 May 1485. He became chancellor to Maximilian I when the latter was elected emperor in 1493. On 4 Jan. 1496 he established in his diocese a literary censorship, the first of its kind recorded in history. He sent ambassadors to Rome to protest against the bull of 20 Apr. 1487, by which Innocent VIII demanded the tithes of ecclesiastical property in Germany for the Crusade. In 1495, at the Diet of Worms, he proposed the establishment of an imperial council for state affairs in order to curb the emperor’s absolutism. He was buried in the cathedral of Mainz.
BIBL.: J. B. Weckerle, De Bertholdi Hennebergensis archiepiscopi Magnuntini... studiis politici, Münster 1868; Hefele-Leclercq, VIII, 1, pp. 137-38; Allgemeine deutsche Biographie, II (1875), pp. 524-28.