Theodebert I and his son, Theodebald, sent expeditions into Italy during a struggle between the Ostrogoths and Byzantines (535–554), but they achieved no lasting results. The grandsons of Clovis
At the death of Chlotar I (561), the Frankish kingdom, which had become the most powerful state in the West, was once again divided, this time between his four sons. The partition agreement was based on that of 511 but dealt with more extensive territories. Guntram received the eastern part of the former kingdom of Orléans, enlarged by the addition of Burgundy. Charibert I’s share was fashioned from the old kingdom of Paris (Seine and English Channel districts), augmented in the south by the western section of the old kingdom of Orléans (lower Loire valley) and the Aquitaine Basin. Sigebert I received the kingdom of Reims, extended to include the new German conquests; a portion of the Massif Central (Auvergne) and the Provençal territory (Marseille) were added to his share. Chilperic I’s portion was reduced to the kingdom of Soissons.
The death of Charibert (567) resulted in further partition. Chilperic, the principal beneficiary, received the lower Seine district, including a large tract of the English Channel coast. The remainder, most notably Aquitaine and the area around Bayeux, was divided in a complex manner; and Paris was subject to joint possession. The partitions of 561 and 567, which reaffirmed the division of Francia, were the sources of innumerable intrigues and family struggles, especially between, on the one hand, Chilperic I, his wife the former slave Fredegund, and their children, who controlled northwestern Francia, and, on the other hand, Sigebert I, his wife the Visigothic princess Brunhild, and their descendants, the masters of northeastern Francia. The shrinking of the frontiers and peripheral areas
These events undermined the Frankish hegemony. In Brittany the Franks maintained control of the eastern region but had to cope with raids by the Bretons, who had established heavily populated settlements in the western part of the peninsula. To the southwest the Gascons, a highland people from the Pyrenees, had been driven northward by the Visigoths in 578 and settled in Novempopulana; in spite of several Frankish expeditions, this area was not subdued. In the south the Franks were unable to gain control of Septimania; they tried to accomplish this by means of diplomatic agreements, which were buttressed by dynastic intermarriage, and by military campaigns occasioned by religious differences (the Visigothic kings were Arians). In the southeast the Lombards, who had recently arrived in Italy, made several raids on Gaul (569, 571, 574); Frankish expeditions into Italy (584, 585, 588, 590), led by Childebert II, were without result. Meanwhile the Avars, a people of undetermined origin who settled along the Danube in the second half of the 6th century, threatened the eastern frontier; in 568 they took Sigebert prisoner, and in 596 they attacked Thuringia, forcing Brunhild to purchase their departure. The parceling of the kingdom
Internal struggles resulted in the emergence of new political configurations. At the time of the partitions of 561 and 567, new political-geographic units began to appear within Gaul. Austrasia was created from the Rhine, Moselle, and Meuse districts, which had formerly been the kingdom of Reims, and from the areas east of the Rhône conquered by Theodoric I and his son Theodebert; Sigebert I (died 575) transferred the capital to Metz to take advantage of the income provided by trade on the Rhine. Neustria was born out of the partition of the kingdom of Soissons; a portion of the kingdom of Paris was added to it, thus endowing the area with a broad coastal section and making the lower Seine valley its centre. Its first capital, Soissons, was returned to Austrasia following the death of Chilperic I; its capital was later moved to Paris, which had been controlled by Chilperic. The kingdom of Orléans, without its western territory but with part of the old Burgundian lands added to it, eventually became Burgundy; Guntram fixed its capital at Chalon-sur-Saône. Aquitaine submitted to the Frankish kingdoms centred farther north in Gaul; its civitates were the object of numerous partitions made by sovereigns who regarded it as an area for exploitation. Aquitaine did not enjoy political autonomy during this period. The failure of reunification (613–714) Chlotar II and Dagobert I
Territorial crisis was partially and provisionally averted during the first third of the 7th century. Chlotar II, son of Chilperic I and Fredegund and king of Neustria since 584, took control of Burgundy and Austrasia in 613 upon the brutal execution of Brunhild, and thus a united kingdom once again was created. He fixed his capital at Paris and, in 614, convoked a council there, at which he recognized the traditional prerogatives of the aristocracy (Gallo-Roman and Germanic) in order to gain their support in the governing of the kingdom. His son Dagobert I (reigned 629–639) was able to preserve this unity. He journeyed to Burgundy, where the highest political office, mayor of the palace, was maintained; to Austrasia; and then to Aquitaine, which was given the status of a duchy. He thus recognized structures of imperial origin.
Dagobert had only limited success along the frontier. In 638 he placed the Bretons and the Gascons under nominal subjection, but ties with these peripheral peoples were tenuous. He intervened in dynastic quarrels of Spain, entering the country and going as far as Zaragoza before receiving tribute and quitting. Septimania remained Visigothic. On the eastern frontier there were incidents involving Frankish merchants and Moravian and Czech Slavs; after the failure of a campaign conducted by Dagobert, with the assistance of the Lombards and Bavarians (633), the Slavs attacked Thuringia. The king reached an agreement with the Saxons, who would protect the eastern frontier in return for remission of a tribute they had paid since 536. Thus, Dagobert used traditional imperial techniques to protect the frontiers with more or less Romanized barbarians. The hegemony of Neustria
The territorial struggles began anew after 639. In Neustria, Austrasia, and Burgundy, power was gradually absorbed by aristocratic leaders, particularly the mayors of the palace. Ebroïn, mayor of the palace in Neustria, attempted to unify the kingdom under his leadership but met with violent opposition. Resistance in Burgundy was led by Bishop Leodegar, who was assassinated about 679 (he was later canonized). Austrasia was governed by the Pippinid mayors of the palace, who were given the office as a reward for their founder’s support of Chlotar in the overthrow of Brunhild; Pippin I of Landen was succeeded by his son Grimoald, who tried unsuccessfully to have his son, Childebert the Adopted, crowned king, and by Pippin II of Herstal (or Héristal), whom Ebroïn was briefly able to keep from power (c. 680).
Frankish hegemony was once more threatened in the peripheral areas, especially to the east where Austrasia was endangered. The Thuringians (640–641) and Alemanni regained their independence. The Frisians reached the mouth of the Schelde River and controlled the towns of Utrecht and Dorestat; the attempted conversion of Frisia by Wilfrid of Northumbria had to be abandoned (c. 680). In southern Gaul the duke Lupus changed the status of Aquitaine from a duchy to an independent principality. Austrasian hegemony and the rise of the Pippinids
The murder of Ebroïn (680 or 683) reversed the situation in favour of Austrasia and the Pippinids. Pippin II defeated the Neustrians at Tertry in 687 and reunified northern Francia under his own control during the next decade. Austrasia and Neustria were reunited under a series of Merovingian kings, who retained much traditional power and authority while Pippin II consolidated his position as mayor of the palace. At the same time, Pippin II partially restabilized the frontiers of northern Francia by driving the Frisians north of the Rhine and by restoring Frankish suzerainty over the Alemanni. But control of southern Gaul continued to elude Pippin II and his supporters. In the early 8th century, Provence became an autonomous duchy, while power in Burgundy was divided. The Carolingians