Sergius I (died 864) was the first duke of Naples of his dynasty, often dubbed the "Sergi," which ruled over Naples for almost three centuries from his accession in 840 until the death of his namesake Sergius VII in 1137.
Sergius was originally the dux of Cumae, a Neapolitan dependency. In 840, with the Franks trying to take the city, the people elected Sergius as duke (or magister militum) of Naples. This was a move towards complete independence from the Byzantine Empire, which was incapable of defending the Ducatus Neapolitanus from the Lombards. Sergius continued the beneficial alliance the Neapolitans had made with the Saracens of Palermo earlier. He aided them in taking Bari from the Byzantines in 841 and Messina in 842. By turning away from the Byzantines and towards the papacy and the Franks, he opened the way for the expulsion of the Muslims from the Campania.
The Saracens soon became too dangerous to keep as friends and Naples was forced to ally with Amalfi, Gaeta, and Sorrento, its practically independent underlings, and make war on the Muslims. The Christians forced them out of Ponza and defended Rome in 846, though the Vatican was sacked. In 849, Sergius led his fleet alongside that of Gaeta and the Vatican in the successful Battle of Ostia.
Sergius allied himself, furthermore, with the Emperors Lothair I and Louis II. In 847, Sergius was charged, along with Guy I of Spoleto, with establishing peace between the Lombard princes Siconulf of Salerno and Radelchis I of Benevento. In 850, Sergius attempted (successfully) to make the duchy hereditary when he appointed his eldest son, Gregory, as co-duke. He began to mint his own coins with his own effigy on them.
In 859, Sergius made war with Capua. He married his daughter to Landulf, gastald of Suessola, son of Lando I of Capua. With the gastald, he sent his sons Gregory and Caesar to sack New Capua. They failed. Sergius' other sons, Athanasius and Stephen, also played an important role in Neapolitan politics. The former became bishop of Naples, an imperial familiaris, and a papal legate and intimate of the Roman curia. Stephen held the bishopric of Sorrento. Before dying, Sergius bade Gregory to follow the counsel of his brother the bishop. Gregory did succeed on Sergius' death and the hereditary, independent dukedom was born.
Saracen was a term used both in Greek and Latin writings between the 5th and 15th centuries, to refer to the people who lived in and near what was designated by the Romans as Arabia Petraea and Arabia Deserta. The term's meaning evolved during its history of usage. During the Early Middle Ages, the term came to be associated with the tribes of Arabia.
The history of Italy in the Middle Ages can be roughly defined as the time between the collapse of the Western Roman Empire and the Italian Renaissance. Late Antiquity in Italy lingered on into the 7th century under the Ostrogothic Kingdom and the Byzantine Empire under the Justinian dynasty, the Byzantine Papacy until the mid 8th century. The "Middle Ages" proper begin as the Byzantine Empire was weakening under the pressure of the Muslim conquests, and most of the Exarchate of Ravenna finally fell under Lombard rule in 751. From this period, former states that were part of the Exarchate and were not conquered by the Lombard Kingdom, such as the Duchy of Naples, became de facto independent states, having less and less interference from the Eastern Roman Empire.
The Duchy of Benevento was the southernmost Lombard duchy in the Italian Peninsula that was centred on Benevento, a city in Southern Italy. Lombard dukes ruled Benevento from 571 to 1077, when it was conquered by the Normans for four years before it was given to the Pope. Being cut off from the rest of the Lombard possessions by the papal Duchy of Rome, Benevento was practically independent from the start. Only during the reigns of Grimoald and the kings from Liutprand on was the duchy closely tied to the Kingdom of the Lombards. After the fall of the kingdom in 774, the duchy became the sole Lombard territory which continued to exist as a rump state, maintaining its de facto independence for nearly 300 years, although it was divided after 849. Benevento dwindled in size in the early 11th century, and was completely captured by the Norman Robert Guiscard in 1053.
The Duchy of Gaeta was an early medieval state centered on the coastal South Italian city of Gaeta. It began in the early ninth century as the local community began to grow autonomous as Byzantine power lagged in the Mediterranean and the peninsula due to Lombard and Saracen incursions.
The Duchy of Naples began as a Byzantine province that was constituted in the seventh century, in the reduced coastal lands that the Lombards had not conquered during their invasion of Italy in the sixth century. It was governed by a military commander (dux), and rapidly became a de facto independent state, lasting more than five centuries during the Early and High Middle Ages. Naples remains a significant metropolitan city in present-day Italy.
The Duchy of Sorrento was a small peninsular duchy of the Early Middle Ages centred on the Italian city of Sorrento.
Guaimar III was the Lombard prince of Salerno from around 994 to his death. Under his reign, Salerno entered an era of great splendour. Opulenta Salernum was the inscription on his coins. He made Amalfi, Gaeta and Sorrento his vassals and annexed much of Byzantine Apulia and Calabria.
Sergius IV was Duke of Naples from 1002 to 1036. He was one of the prime catalysts in the growth of Norman power in the Mezzogiorno in the first half of the eleventh century. He was nominally a Byzantine vassal, like his father, John IV, before him.
Atenulf I, called the Great, was the prince of Capua from 7 January 887 and of Benevento from 899, when he conquered that principality. He also used the title princeps gentis Langobardorum: "prince of the Lombard people," an echo of the title used by the earliest prince of Benevento following the collapse of Lombard cohesion in 774.
Landulf II, called the Red, was the Lombard prince of Benevento and prince of Capua from 939 or 940, when his father, Landulf I, first associated him with the government. His mother was Gemma, daughter of Athanasius of Naples. He may have been associated as early as 933, when his elder brother, Atenulf III, was made co-regent. His uncle Atenulf II died in 940 and it is likely that Landulf served as a replacement. Landulf married Yvantia on an unknown date.
The dukes of Naples were the military commanders of the ducatus Neapolitanus, a Byzantine outpost in Italy, one of the few remaining after the conquest of the Lombards. In 661, Emperor Constans II, highly interested in south Italian affairs, appointed a Neapolitan named Basil dux or magister militum. Thereafter a line of dukes, often largely independent and dynastic from the mid-ninth century, ruled until the coming of the Normans, a new menace they could not weather. The thirty-ninth and last duke, Sergius VII, surrendered his city to King Roger II of Sicily in 1137.
Gregory IV was the firstborn son of Duke Sergius II of Naples and successor of his paternal uncle, Bishop Athanasius, in 898, when he was elected dux, or magister militum, unanimously by the aristocracy. His other paternal uncle, Stephen, succeeded Athanasius as bishop. According to the Chronicon ducum et principum Beneventi, Salerni, et Capuae et ducum Neapolis, he reigned for sixteen years and eight months.
The Arab raid against Rome took place in 846. Muslim raiders plundered the outskirts of the city of Rome, sacking the basilicas of Old St Peter's and St Paul's-Outside-the-Walls, but were prevented from entering the city itself by the Aurelian Walls.
Athanasius was the Bishop and Duke of Naples from 878 to his death. He was the son of Gregory III and brother of Sergius II, whom he blinded and deposed in order to seize the throne while he was already bishop.
Gregory III, eldest son of Sergius I of Naples and Drusa, was the duke of Naples as co-regent with his father from 850 and as successor to his father from his father's death in 864 to his own some six years later. He was recorded as a man of learning, fluent in both Greek and Latin.
The Principality of Capua was a Lombard state centred on Capua in Southern Italy. Towards the end of the 10th century the Principality reached its apogee, occupying most of the Terra di Lavoro area. It was originally a gastaldate, then a county, within the principality of Salerno.
Caesar the Brave was the admiral of the fleet of the Duchy of Naples during the reigns of his father, Sergius I, and brother, Gregory III.
The history of Islam in Sicily and southern Italy began with the first Arab settlement in Sicily, at Mazara, which was captured in 827. The subsequent rule of Sicily and Malta started in the 10th century. The Emirate of Sicily lasted from 831 until 1061, and controlled the whole island by 902. Though Sicily was the primary Muslim stronghold in Italy, some temporary footholds, the most substantial of which was the port city of Bari, were established on the mainland peninsula, especially in mainland southern Italy, though Muslim raids, mainly those of Muhammad I ibn al-Aghlab, reached as far north as Naples, Rome and the northern region of Piedmont. The Arab raids were part of a larger struggle for power in Italy and Europe, with Christian Byzantine, Frankish, Norman and local Italian forces also competing for control. Arabs were sometimes sought as allies by various Christian factions against other factions.
Sergius VI was the magister militum and duke of Naples from 1077 to his death. He was the son of the Neapolitan senator John, and succeeded his uncle, John's elder brother, Sergius V. His sister Inmilgia married Duke Landulf of Gaeta. His reign is very obscure because of the slight documentary evidence.
The Norman conquest of southern Italy lasted from 999 to 1139, involving many battles and independent conquerors.
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