Sergius I (died 864) was the first

duke of Naples 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 (h ...

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 Sergius VII (died 30 October 1137) was the thirty-ninth and last duke Duke is a male title either of a monarch ruling over a duchy, or of a member of royalty, or nobility. As rulers, dukes are ranked below emperors, kings, grand princes, ...

in 1137. Sergius was originally the ''

dux ''Dux'' (; plural: ''ducēs'') is Latin for "leader" (from the noun ''dux, ducis'', "leader, general") and later for duke and its variant forms (doge, duce, etc.). During the Roman Republic and for the first centuries of the Roman Empire, '' ...

'' of

Cumae Cumae ( grc, Κύμη, (Kumē) or or ; it, Cuma) was the first ancient Greek colony on the mainland of Italy, founded by settlers from Euboea in the 8th century BC and soon becoming one of the strongest colonies. It later became a rich Ro ...

, a Neapolitan dependency. In 840, with the

Franks The Franks ( la, Franci or ) were a group of Germanic peoples whose name was first mentioned in 3rd-century Roman sources, and associated with tribes between the Lower Rhine and the Ems River, on the edge of the Roman Empire.H. Schutz: Tools, ...

trying to take the city, the people elected Sergius as duke (or ''

magister militum (Latin for "master of soldiers", plural ) was a top-level military command used in the later Roman Empire, dating from the reign of Constantine the Great. The term referred to the senior military officer (equivalent to a war theatre commander, ...

'') of Naples. This was a move towards complete independence from the

Byzantine Empire The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...

, which was incapable of defending the ''

Ducatus Neapolitanus The Duchy of Naples ( la, Ducatus Neapolitanus, it, Ducato di Napoli) 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 ...

'' from the

Lombards The Lombards () or Langobards ( la, Langobardi) were a Germanic people who ruled most of the Italian Peninsula from 568 to 774. The medieval Lombard historian Paul the Deacon wrote in the ''History of the Lombards'' (written between 787 and ...

. Sergius continued the beneficial alliance the Neapolitans had made with the

Saracens file:Erhard Reuwich Sarazenen 1486.png, upright 1.5, Late 15th-century Germany in the Middle Ages, German woodcut depicting Saracens Saracen ( ) was a term used in the early centuries, both in Greek language, Greek and Latin writings, to refer ...

Palermo Palermo ( , ; scn, Palermu , locally also or ) is a city in southern Italy, the capital (political), capital of both the autonomous area, autonomous region of Sicily and the Metropolitan City of Palermo, the city's surrounding metropolitan ...

earlier. He aided them in taking

Bari Bari ( , ; nap, label= Barese, Bare ; lat, Barium) is the capital city of the Metropolitan City of Bari and of the Apulia region, on the Adriatic Sea, southern Italy. It is the second most important economic centre of mainland Southern Italy a ...

from the Byzantines in 841 and

Messina Messina (, also , ) is a harbour city and the capital of the Italian Metropolitan City of Messina. It is the third largest city on the island of Sicily, and the 13th largest city in Italy, with a population of more than 219,000 inhabitants in ...

in 842. By turning away from the Byzantines and towards the

papacy The pope ( la, papa, from el, πάππας, translit=pappas, 'father'), also known as supreme pontiff ( or ), Roman pontiff () or sovereign pontiff, is the bishop of Rome (or historically the patriarch of Rome), head of the worldwide Cathol ...

and the Franks, he opened the way for the expulsion of the Muslims from the

Campania Campania (, also , , , ) is an administrative Regions of Italy, region of Italy; most of it is in the south-western portion of the Italian peninsula (with the Tyrrhenian Sea to its west), but it also includes the small Phlegraean Islands and the i ...

. The Saracens soon became too dangerous to keep as friends and Naples was forced to ally with

Amalfi Amalfi (, , ) is a town and ''comune'' in the province of Salerno, in the region of Campania, Italy, on the Gulf of Salerno. It lies at the mouth of a deep ravine, at the foot of Monte Cerreto (1,315 metres, 4,314 feet), surrounded by dramatic c ...

Gaeta Gaeta (; lat, Cāiēta; Southern Laziale: ''Gaieta'') is a city in the province of Latina, in Lazio, Southern Italy. Set on a promontory stretching towards the Gulf of Gaeta, it is from Rome and from Naples. The town has played a consp ...

, and

Sorrento Sorrento (, ; nap, Surriento ; la, Surrentum) is a town overlooking the Bay of Naples in Southern Italy. A popular tourist destination, Sorrento is located on the Sorrentine Peninsula at the south-eastern terminus of the Circumvesuviana rail ...

, its practically independent underlings, and make war on the Muslims. The Christians forced them out of

Ponza Ponza (Italian: ''isola di Ponza'' ) is the largest island of the Italian Pontine Islands archipelago, located south of Cape Circeo in the Tyrrhenian Sea. It is also the name of the commune of the island, a part of the province of Latina in th ...

and defended

Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus (legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...

in 846, though the

Vatican Vatican may refer to: Vatican City, the city-state ruled by the pope in Rome, including St. Peter's Basilica, Sistine Chapel, Vatican Museum The Holy See * The Holy See, the governing body of the Catholic Church and sovereign entity recognized ...

was sacked. In 849, Sergius led his fleet alongside that of Gaeta and the Vatican in the successful

Battle of Ostia The naval Battle of Ostia took place in 849 in the Tyrrhenian Sea between Muslim army and an Italian league of Papal, Neapolitan, Amalfitan, and Gaetan ships. The battle ended in favor of the Italian league, as they defeated the pirates. It is o ...

. Sergius allied himself, furthermore, with the Emperors

Lothair I Lothair I or Lothar I (Dutch and Medieval Latin: ''Lotharius''; German: ''Lothar''; French: ''Lothaire''; Italian: ''Lotario'') (795 – 29 September 855) was emperor (817–855, co-ruling with his father until 840), and the governor of Bavar ...

and Louis II. In 847, Sergius was charged, along with

Guy I of Spoleto Guy I (died 860) was the Duke of Spoleto from 842. He was the son of Lambert I of Nantes and Adelaide of Lombardy, the eldest daughter of Pepin of Italy. He travelled with his father in 834 in the entourage of Lothair I. He was given the abbey of M ...

, with establishing peace between the Lombard princes

Siconulf of Salerno Siconulf (also ''Siconolf'', ''Sikenolf'', ''Siconolfo'', or ''Siconulfus'') was the first prince of Salerno, the brother of Sicard, prince of Benevento (832–839), who was assassinated by Radelchis. In response to Sicard's murder, the people ...

and

Radelchis I of Benevento Radelchis I (also ''Radalgis'') (died 851) was the treasurer, then prince of Benevento from 839, when he assumed the throne upon the assassination (possibly at his instigation) of Sicard and imprisonment of Sicard's brother, Siconulf, to his dea ...

. 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 Capua ( , ) is a city and ''comune'' in the province of Caserta, in the region of Campania, southern Italy, situated north of Naples, on the northeastern edge of the Campanian plain. History Ancient era The name of Capua comes from the Etrusc ...

. He married his daughter to Landulf,

gastald A gastald (Latin ''gastaldus'' or ''castaldus''; Italian ''gastaldo'' or ''guastaldo'') was a Lombard official in charge of some portion of the royal demesne (a gastaldate, ''gastaldia'' or ''castaldia'') with civil, martial, and judicial powers. ...

of Suessola, son of

Lando I of Capua Lando I (died 861) was the count of Capua from 843. He was the eldest son and successor of Landulf the Old. Like his father, he supported Siconulf against Radelchis in the civil war dividing the Principality of Benevento in the 840s. It was Lando ...

. With the gastald, he sent his sons Gregory and

Caesar Gaius Julius Caesar (; ; 12 July 100 BC – 15 March 44 BC), was a Roman people, Roman general and statesman. A member of the First Triumvirate, Caesar led the Roman armies in the Gallic Wars before defeating his political rival Pompey in Caes ...

to sack New Capua. They failed. Sergius' other sons,

Athanasius Athanasius I of Alexandria, ; cop, ⲡⲓⲁⲅⲓⲟⲥ ⲁⲑⲁⲛⲁⲥⲓⲟⲩ ⲡⲓⲁⲡⲟⲥⲧⲟⲗⲓⲕⲟⲥ or Ⲡⲁⲡⲁ ⲁⲑⲁⲛⲁⲥⲓⲟⲩ ⲁ̅; (c. 296–298 – 2 May 373), also called Athanasius the Great, ...

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.

Sources

Naples in the Dark Ages
by David Taylor and Jeff Matthews. *

Erchempert Erchempert ( la, Erchempertus) was a Benedictine monk of the Abbey of Monte Cassino in Italy in the final quarter of the ninth century. He chronicled a history of the Lombard Principality of Benevento The Duchy of Benevento (after 774, Principa ...

''Historia Langabardorvm Beneventarnorvm''
at

The Latin Library The Latin Library is a website that collects public domain Latin texts. It is run by William L. Carey, adjunct professor of Latin and Roman Law at George Mason University. The texts have been drawn from different sources, are not intended for rese ...

. *Caravale, Mario (ed). ''Dizionario Biografico degli Italiani: LIX Graziando – Grossi Gondi''.

, 2002. *Chalandon, Ferdinand. ''Histoire de la domination normande en Italie et en Sicilie''.

Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...

, 1907. {{DEFAULTSORT:Sergius 01 Of Naples 864 deaths 9th-century dukes of Naples Magistri militum Year of birth unknown

See also

Sources