Charlemagne's successor, Louis the Pious, reportedly treated the Saxons more as Alcuin would have wished, and as a consequence they were faithful subjects.[57] The lower classes, however, revolted against Frankish overlordship in favour of their old paganism as late as the 840s, when the Stellinga rose up against the Saxon leadership, who were allied with the Frankish emperor Lothair I. After the suppression of the Stellinga, in 851 Louis the German brought relics from Rome to Saxony to foster a devotion to the Roman Catholic Church.[58] The Poeta Saxo, in his verse Annales of Charlemagne's reign (written between 888 and 891), laid an emphasis on his conquest of Saxony.