From this aristocracy one family gradually emerged to replace the Merovingian dynasty. The rise of the Carolingians — whose name comes from the Latin Carolus, or Charles, the name of several important members of the family — rests on several factors. First, the Carolingian Pippin I (d. 640) acquired the powerful position of mayor of the palace and passed the title on to his heirs. As mayors of the palace and heads of the Frankish bureaucracy, Pippin I and his descendants were entrusted with extraordinary amounts of power and privilege by the Merovingian kings. Although the mayor of the palace was technically employed by the ruling family, the Carolingians would use their influential position to win support for themselves and eventually subvert Merovingian authority. Second, a series of advantageous marriage alliances brought the family estates and influence in different parts of the Frankish world, and provided the Carolingians with landed wealth and treasure with which to reward their allies and followers. Third, military victories over supporters of the Merovingians gave the Carolingians a reputation for strength and ensured their dominance. Pippin I’s great-grandson, Charles Martel (r. 714–741), waged war successfully against the Saxons, Frisians, Alamanni, and Bavarians, which further enhanced the family’s prestige. In 732 Charles Martel defeated a Muslim force near Poitiers (pwah-tee-AY) in central France. Muslims and Christians have interpreted the battle differently. To the Muslims it was a minor skirmish won by the Franks because of Muslim difficulties in maintaining supply lines over long distances and the distraction of ethnic conflicts and unrest in Islamic Spain. For Christians the Frankish victory was one of the great battles of history, halting Muslim expansion in Europe. Charles Martel and later Carolingians used it to enhance their reputation, portraying themselves as defenders of Christendom against the Muslims.

The Battle of Poitiers helped the Carolingians acquire the support of the church, perhaps their most important asset. Charles Martel and his son Pippin III (r. 751–768) further strengthened their ties to the church by supporting the work of Christian missionaries. The most important of these missionaries was the Englishman Boniface (BAH-nuh-fays) (680–754), who had close ties to the Roman pope. Boniface ordered the oak of Thor, a tree sacred to many pagans, cut down and used the wood to build a church. When the god Thor did not respond by killing him with his lightning bolts, Boniface won many converts. As missionaries preached, baptized, and established churches, they included the Christian duty to obey secular authorities as part of their message, thus extending to Frankish rulers the church’s support of secular power that had begun with Constantine (see “Reconstruction Under Diocletian and Constantine” in Chapter 7).

As mayor of the palace, Charles Martel had exercised the power of king of the Franks. His son Pippin III aspired to the title as well as the powers it entailed. Pippin’s diplomats were able to convince an embattled Pope Zacharias to rule in his favor against the Merovingians in exchange for military support against the Lombards, who were threatening the papacy. Zacharias invoked his apostolic authority as pope, deposed the Merovingian ruler Chilperic in 752, and declared that Pippin should be king “in order to prevent provoking civil war [between the Merovingians and Carolingians] in Francia.”2 An assembly of Frankish magnates elected Pippin king, and Boniface anointed him. When in 754 Lombard expansion again threatened the papacy, Pope Stephen II journeyed to the Frankish kingdom seeking help. On this occasion, he personally anointed Pippin with the sacred oils and gave him the title “Patrician of the Romans,” thus linking him symbolically with the ruling patrician class of ancient Rome. Pippin promised restitution of the papal lands and later made a gift of estates in central Italy.

Because of his anointment, Pippin’s kingship took on a special spiritual and moral character. Prior to Pippin only priests and bishops had received anointment. Pippin became the first to be anointed with the sacred oils and acknowledged as rex et sacerdos (rehks eht SAHK-ehr-dohse), meaning king and priest. Anointment, not royal blood, set the Christian king apart. By having himself anointed, Pippin cleverly eliminated possible threats to the Frankish throne by other claimants, and the pope promised him support in the future. An important alliance had been struck between the papacy and the Frankish monarchs. When Pippin died, his son Charles, generally known as Charlemagne, succeeded him.