Cluny was not known for the severity of its discipline or its asceticism, but the abbots of Cluny supported the revival of the papacy and the reforms of Pope Gregory VII. The Cluniac establishment found itself closely identified with the Papacy. In the early 12th century, the order lost momentum under poor government. It was subsequently revitalized under Abbot Peter the Venerable (died 1156), who brought lax priories back into line and returned to stricter discipline. Cluny reached its apogee of power and influence under Peter, as its monks became bishops, legates, and cardinals throughout France and the Holy Roman Empire. But by the time Peter died, newer and more austere orders such as the Cistercians were generating the next wave of ecclesiastical reform. Outside monastic structures, the rise of English and French nationalism created a climate unfavourable to the existence of monasteries autocratically ruled by a head residing in Burgundy. The Papal Schism of 1378 to 1409 further divided loyalties: France recognizing a pope at Avignon and England one at Rome, interfered with the relations between Cluny and its dependent houses. Under the strain, some English houses, such as Lenton Priory, Nottingham, were naturalized (Lenton in 1392) and no longer regarded as alien priories, weakening the Cluniac structure.