 In 1143, Nigel became involved in a quarrel with the powerful Henry of Blois. Charges of depriving a priest of a church, giving church property to laymen, and encouraging sedition were brought against Nigel, and he was forced to go to Rome to defend himself, only reaching Rome in 1144. He did not return to his diocese until 1145. He probably accompanied Theobald of Bec, the Archbishop of Canterbury, who went to Rome around this time on separate business. While he was in Rome, Pope Lucius II issued a number of rulings in Nigel's favor, ordering his restitution to Ely. He was then finally reconciled with Stephen by paying a fine of £ 200 and offering his son Richard fitzNeal as a hostage. While Nigel was at Rome, Ely was attacked by the king's forces. The monks sent to Geoffrey de Mandeville for aid, and Geoffrey came and occupied the Isle of Ely, while the king's forces occupied the lands of the diocese outside the Isle. Both occupying forces did damage to the lands of the diocese and the cathedral chapter. The monks, in the Liber Eliensis, complained that Nigel had taken items from the church to finance his trip to Rome, and that they were required to help contribute to the bribe when Nigel was reconciled with Stephen.
