Charlemagne aligned himself with the Pope and the Catholic Church in Europe for greater power. This alliance helped solidify his rule and legitimacy as the Frankish king and later as the Emperor of the Holy Roman Empire. By aligning himself with the Church, Charlemagne was able to gain the support of the clergy and use religious authority to strengthen his political position. This alliance also helped to foster a sense of unity and Christian identity among the diverse peoples under his rule.
