The expiration of Henry's legatine commission when Pope Innocent II died on 23 September 1143 deprived him of much of his power. His efforts to renew the commission were unsuccessful, but he made a personal visit to Rome and secured several favours for Glastonbury and the Benedictine order in general. Shortly after his brother's death and the accession of Henry II, the bishop retired to Cluny, where he had sent much treasure, for at least two years and mourned there his mentor Peter the Venerable, who died on Christmas Day, 1156.