Bruno (bishop of Segni) that won him much praise and admiration. In April 1082 he was travelling from Segni to Rome when Adolfo di Segni seized and imprisoned him. He was freed and returned to Rome but was imprisoned once more alongside the pope in the Sant'Angelo castle. Pope Victor III named him as the Vatican Librarian and he held the position until he left for Montecassino in 1099. Bruno had connections to Pope Urban II whom he accompanied to the Council of Clermont in late 1095 where the First Crusade was inaugurated. He travelled with the pope to Avignon from 11-13 September before
Geoffrey of Vendôme monastery to Popes Urban and Paschal. He took part in the councils held at Clermont in 1095, by Pope Urban; at Saintes, in 1096, by the Apostolic Legate Amatus of Bordeaux; and at Reims, in 1131, by Innocent II (1130–43). He also strenuously defended the ecclesiastical principles in the question of investitures, which he qualified in several small tracts as heresy and simony; he wrote in the same spirit to Pope Paschal II when the latter made concessions (1111) to Emperor Henry V (1106–25). Finally, he always defended firmly the prerogatives, the rights, and the property of his abbey at