Frankish Kingdom (5th – 9th c.)
The Frankish Kingdom was the strongest and the most powerful of all medieval Germanic kingdoms established on ruins of the Western Roman Empire. The Frankish Kingdom started to rise during the reign of Clovis I (482-511) who conquered the neighboring Frankish tribes, defeated Visigoths with center in Toulouse and Alamanni in 496, and established himself as sole king of all Franks. Clovis’ conversion into Catholicism in 498 by which he gained the support of the Roman population and of the Catholic Church played an important role in the future development of the Frankish Kingdom as well. The territorial expansion in the 5th and first half of the 6th centuries under the Merovingian Dynasty was followed by an inner crisis that was caused by the division of the kingdom into Austrasia, Neustria and Burgundy. Clotaire II (613-629) reunited the Frankish Kingdom and was proclaimed the King of all the Franks but further divisions took place after the death of Dagobert I in 639 and resulted in decline of Merovingian power and rise of the mayors of the palace.
Pepin of Herstal, the Mayor of the Palace of Austrasia defeated allied forces of Theuderic III, King of the Franks and Berthar, the Mayor of the Palace of Neustria and Burgundy in the Battle of Tertry in 687 becoming de facto ruler of the Frankish Kingdom. Pepin also subdued the Alemanni, Frisians, Bavarians and Bretons, and captured Aquitaine, while Thuringia managed to renew its independence for a short period. On Pepin’s death his illegitimate son Charles Martel (714-741) seized power in Austrasia. Charles Martel is best known for defeating the Muslim invaders in the Battle of Tours in 732 and stopping the Muslim advance in Western Europe. On the death of Charles Martel his two sons Carloman and Pepin the Short became the Mayors of the Palaces of Neustria and of Austrasia. However, Carloman went into monastery Monte Cassino in 747 leaving Pepin the Short as the sole mayor of the palace.
Pepin the Short deposed the last Merovingian king Childeric III and confined him to a monastery with support of Pope Zachary in 751. Afterwards he had himself elected as King of the Franks by an assembly of Frankish leading-men and was anointed at Soissons. Pepin’s coronation finally ended the Merovingian rule in the Frankish Kingdom and established the Carolingian Dynasty as the new ruling dynasty. The reign of Pepin the Short was also notable for the incorporation of Aquitaine into the Frankish Kingdom, installation of Tassilo III in Bavaria as duke under Frankish overlordship and Frankish victory over the Lombards. Like the Merovingian kings, Pepin the Short divided the Frankish Kingdom among his sons on his death: Carloman and Charlemagne (768-814) but Charlemagne became sole ruler of the Franks after Carloman’s sudden death in 771.