Neustria in the context of Bretons

Under the Merovingian dynasty, the mayor of the palace or majordomo,(Latin: maior palatii or maior domus) was the manager of the household of the Frankish king. He was the head of the Merovingian administrative ladder and orchestrated the operation of the entire court. He was appointed by the king from among the magnates, the most powerful families. Austrasia, Neustria and Burgundy had their own mayor of the palace. After Chlothar II, who ruled over the entire Frankish Kingdom, had ordered the execution of Warnachar, the mayor of Burgundy, the magnates of Burgundy declared in 626 not to want their own mayor anymore. This declaration marks the effective end of the Burgundian court and the beginning of the Neustrian-Burgundian political alliance against Austrasian influence. The Austrasian magnates revolted and the Battle of Tertry of 687 became the Austrasian victory with Pepin of Herstal as their leader and the new mayor of the palace.

During the second half of the seventh century, the office evolved into the "power behind the throne". At that time the mayor of the palace held and wielded the real and effective power to make decisions affecting the kingdom, while the kings were increasingly reduced to performing merely ceremonial functions, which made them little more than figureheads (rois fainéants, 'do-nothing kings'). The office may be compared to that of the peshwa, shōgun, sarvadhikari, or prime minister, all of which have similarly been the real powers behind some ceremonial monarchs.

Pepin the Short (Latin: Pipinus; French: Pépin le Bref; German: Pippin der Kurze; c. 714 – 24 September 768) was King of the Franks from 751 until his death in 768. He was the first Carolingian to become king.

Pepin was the son of the Frankish prince Charles Martel and his wife Rotrude. Pepin's upbringing was distinguished by the ecclesiastical education he had received from the Christian monks of the Abbey Church of St. Denis, near Paris. In 741, after Pepin and his older brother Carloman besieged their half-brother Grifo (who did not accept their father's plans for succession) at Laon and imprisoned him in a monastery, he and Carloman succeeded their father as the Mayor of the Palace; In effect, Pepin reigned over Francia jointly with his elder brother, Carloman. Pepin ruled in Neustria, Burgundy, and Provence, while his older brother Carloman established himself in Austrasia, Alemannia, and Thuringia. The brothers were active in suppressing revolts led by the Bavarians, Aquitanians, Saxons, and the Alemanni in the early years of their reign. In 743, they ended the Frankish Interregnum [fr] by choosing Childeric III, who was to be the last Merovingian monarch, as figurehead King of the Franks.

The Carolingian civil war was a violent crisis over the succession to the Carolingian Empire following the death of Emperor Louis the Pious in June 840 and lasting until the Treaty of Verdun in August 843. Louis's eldest son, the emperor Lothar I, laid claim to an undivided empire, while his younger brothers Louis the German and Charles the Bald sought large kingdoms of their own on the basis of previous divisions planned by the late emperor. Their nephew, Pippin II, laid claim to Aquitaine.

After Louis the Pious's death, Lothar moved immediately to disregard the division of the empire and secure for himself his father's imperial position. He reached out to Pippin in Aquitaine for support against Charles. Not content with Bavaria alone, Louis the German occupied the Rhineland laying claim to all of Germania. The first military move of the budding civil war was Lothar's campaign that forced Louis from the Rhineland in August. It increased Lothar's prestige in the east, but ended in an armistice. Lothar then marched to the Seine in September, laying claim to Neustria, before reaching a truce with Charles.

Carloman (between 706 and 716 – 17 August 754) was the eldest son of Charles Martel, mayor of the palace and duke of the Franks, and his wife Chrotrud of Treves. On Charles's death (741), Carloman and his brother Pepin the Short succeeded to their father's legal positions, Carloman in Austrasia, and Pepin in Neustria. He was a member of the family later called the Carolingians and it can be argued that he was instrumental in consolidating their power at the expense of the ruling Merovingian kings of the Franks. He withdrew from public life in 747 to take up the monastic habit, "the first of a new type of saintly king", according to Norman Cantor, "more interested in religious devotion than royal power, who frequently appeared in the following three centuries and who was an indication of the growing impact of Christian piety on Germanic society".

Austrasia was a historical region and the northeastern realm within the core of the Frankish State during the Early Middle Ages, centering on the regions between Meuse, Moselle, Middle Rhine and the Main rivers. It included the original Frankish-ruled territories within what had been the northernmost part of Roman Gaul and parts of Roman Germania. It also stretched beyond the old Roman borders on the Rhine into Frankish areas which had never been formally under Roman rule. It came into being as a part of the Frankish Kingdom, founded by the Merovingian king Clovis I (r. 481–511), who expanded Frankish rule further to the southwest, into Gaul, whose northern regions came to be known as Neustria.

These two realms, or sub-kingdoms (Austrasia and Neustria), along with Aquitaine and Burgundy, were subsequently ruled by various rulers from the Merovingian dynasty, followed in the 8th and 9th centuries by their successors from the Carolingian dynasty, whose own powerbase was in Austrasia itself. The two Frankish dynasties did not always have a single ruling monarch over the whole Frankish realm, and already by 561, Austrasia was ruled as a separate kingdom within the Frankish realm by the Merovingian king Sigebert I (561–575). Kings often allowed different family members to rule sub-kingdoms, and these were sometimes in conflict with each other, despite the underlying continuity of the overall Frankish state.

Chilperic I (c. 539 – September 584) was the king of Neustria (or Soissons) from 561 to his death. He was one of the sons of the Frankish king Clotaire I and Queen Aregund.

Pepin II (c. 635 – 16 December 714), commonly known as Pepin of Herstal, was a Frankish statesman and military leader who was the de facto ruler of Francia as the Mayor of the Palace from 680 until his death. He took the title Duke and Prince of the Franks upon his conquest of all the Frankish realms.

The son of the powerful Frankish statesman Ansegisel, Pepin worked to establish his family, the Pippinids, as the strongest in Francia. He became Mayor of the Palace in Austrasia in 680. Pepin subsequently embarked on several wars to expand his power. He united all the Frankish realms by the conquests of Neustria and Burgundy in 687. In foreign conflicts, Pepin increased the power of the Franks by his subjugation of the Alemanni, the Frisians, and the Franconians. He also began the process of evangelisation in Germany.

Chlothar II, sometimes called "the Young" (French: le Jeune), (May/June 584 – 18 October 629) was king of the Franks, ruling Neustria (584–629), Burgundy (613–629) and Austrasia (613–623).

The son of Chilperic I and his third wife, Fredegund, he started his reign as an infant under the regency of his mother, who was in an uneasy alliance with Chlothar's uncle King Guntram of Burgundy, who died in 592. Chlothar took power upon the death of his mother in 597; though rich, his realm was one of the smallest portions of Francia. He continued his mother's feud with Queen Brunhilda with equal viciousness and bloodshed, finally achieving her execution by dismemberment in 613, after winning the battle that enabled Chlothar to unite Francia under his rule. Like his father, he built up his territories by seizing lands after the deaths of other kings.

The Battle of Tertry was an important engagement in Merovingian Gaul between the forces of Austrasia under Pepin II on one side and those of Neustria and Burgundy on the other. It took place in 687 at Tertry, Somme, and the battle is presented as an heroic account in the Annales mettenses priores. After achieving victory on the battlefield at Tertry, the Austrasians dictated the political future of the Neustrians.

Sigebert I (c. 535 – c. 575) was a Frankish king of Austrasia from the death of his father in 561 to his own death. He was the third surviving son out of four of Clotaire I and Ingund. His reign found him mostly occupied with a successful civil war against his half-brother, Chilperic.

When Clotaire I died in 561, his kingdom was divided, in accordance with Frankish custom, among his four sons: Sigebert became king of the northeastern portion, known as Austrasia, with its capital at Rheims, to which he added further territory on the death of his brother, Charibert I, in 567 or 568; Charibert himself had received the kingdom centred on Paris; Guntram received the Kingdom of Burgundy with its capital at Orléans; and the youngest son, the aforementioned Chilperic, received Soissons, which became Neustria when he received his share of Charibert's kingdom. Incursions by the Avars, a fierce nomadic tribe related to the Huns, caused Sigebert to move his capital from Rheims to Metz. He repelled their attacks twice, in 562 and c. 568. He was defeated and captured by Huns (Avars), but at the end he made peace with them.

Theudebert II (French: Thibert or Théodebert) (c.585–612), King of Austrasia (595–612 AD), was the son and heir of Childebert II. He received the kingdom of Austrasia plus the cities (civitates) of Poitiers, Tours, Le Puy-en-Velay, Bordeaux, and Châteaudun, as well as the Champagne, the Auvergne, and Transjurane Alemannia.

During his early years, his grandmother Brunhilda ruled for Theudebert and his brother Theuderic II, who had received the realm of Burgundy. After the two brothers reached adulthood, they were often at war, with Brunhilda siding with Theuderic. In 599, he expelled his grandmother from his court, possibly at the instigation of the nobility, who had grown tired of Brunhilda’s influence on the King. She then went to his younger brother who readily accepted their grandmother at his court. She instigated a short but vengeful war between the brothers in the same year and Theuderic defeated Theudebert in a pinched battle at Sens, but when their cousin Chlothar II saw an opportunity to expand his realm, he invaded Neustria. Under their grandmother, the two brothers made a temporary truce and allied against their cousin, defeating him in a battle at Dormelles (near Montereau), thereby laying their hands on a great portion of Cholthar’s part of Neustria (600–604). At this point, however, the two brothers took up arms against each other for the second time; Theuderic defeated Theudebert at Étampes. In 605, Theudebert refused to aid his brother whose kingdom was invaded by Clothar II. In 610, Theudebert extorted Alsace from his brother and Theuderic took up arms against him, yet again for a third time.

Theuderic II (also spelled Theuderich, Theoderic or Theodoric; in French, Thierry) (c. 587–613), king of Burgundy (595–613) and Austrasia (612–613), was the second son of Childebert II. At his father's death in 595, he received Guntram's kingdom of Burgundy, with its capital at Orléans, while his elder brother, Theudebert II, received their father's kingdom of Austrasia, with its capital at Metz. He also received the lordship of the cities (civitates) of Toulouse, Agen, Nantes, Angers, Saintes, Angoulême, Périgueux, Blois, Chartres, and Le Mans. During his minority, and later, he reigned under the guidance of his grandmother Brunhilda, evicted from Austrasia by his brother Theudebert II.

In 596, Clotaire II, king of Neustria, and Fredegund, Clotaire's mother, took Paris, which was supposed to be held in common. Fredegund, then her son's regent, sent a force to Laffaux and the armies of Theudebert and Theuderic were defeated.

Sigebert II (601–613) or Sigisbert II, was the illegitimate son of Theuderic II, from whom he inherited the kingdoms of Burgundy and Austrasia in 613. However, he fell under the influence of his great-grandmother, Brunhilda.

Warnachar, mayor of the palace of Austrasia had Sigebert brought before a national assembly, where he was proclaimed king by the nobles over both his father's kingdoms. However, when the kingdom was invaded by Clotaire II of Neustria, Warnachar and Rado, mayor of the palace of Burgundy, betrayed Sigebert and Brunhilda and joined with Clotaire, recognising Clotaire as rightful regent and guardian of Sigebert and ordering the army not to oppose the Neustrians. Brunhilda and Sigebert met Clotaire's army on the Aisne, but the Patrician Aletheus, Duke Rocco, and Duke Sigvald deserted her host and Brunhilda and Sigebert were forced to flee, before being taken by Clotaire's men at Lake Neuchâtel.

Quentovic was a Frankish emporium in the Early Middle Ages, located on the European continent close to the English Channel. The town no longer exists, but it was thought to have been situated near the mouth of the Canche River in what is today the French commune of Étaples. Archaeological discoveries by David Hill in the 1980s found that the actual location of Quentovic was east of Étaples, in what is now the commune of La Calotterie.

Quentovic was an important trading hub for the Franks and its port linked the continent to the southeastern county of Kent, in England. Quentovic was likely founded by a Neustrian king in the early 6th century. It was one of the two most prominent Frankish ports in the north (the other being Dorestad) until it was abandoned, probably in the 11th century. Merchants were drawn to this place because the number of trading posts at the time was limited. Quentovic was also where Anglo-Saxon monks would cross the English Channel when on pilgrimage to Rome. Important historical evidence on Quentovic comes from documents of taxation and through the town's minting of coinage, but otherwise there is limited physical evidence of the town's activities. Coins minted there during both the Merovingian and Carolingian dynasties have been discovered.