a Zotto, autonomously from the Lombard king.
Zotto's successor was Arechis I (died in 640), from the Duchy of Friuli, who captured Capua and Crotone, sacked the Byzantine Amalfi but was unable to capture Naples. After his reign the Eastern Roman Empire had left in southern Italy only Naples, Amalfi, Gaeta, Sorrento, the tip of Calabria and the maritime cities of Apulia.
In the following decades, Benevento conquered some territories to the Roman-Byzantine duchy, but the main enemies was now the northern Lombard reign itself. King Liutprand intervened in several times imposing a candidate of his own to the duchy's succession; his successor Ratchis declared the duchies of Spoleto and Benevento foreign countries where it was forbidden to travel without a royal permission.
With the collapse of the Lombard kingdom in 773, Duke Arechis II was elevated to Prince under the new empire of the Franks, in compensation for having some of his territory transferred back to the Papal States. Benevento was acclaimed by a chronicler as a "second Pavia"— Ticinum geminum— after the Lombard capital was lost. The unit of this principality was short-lived: in 851, Salerno broke off under Siconulf and, by the end of that century, Capua was independent as well. Benevento was ruled again by Byzantines between 891-895.
The so-called Langobardia minor was unified for the last time by Duke Pandolfo Testa di Ferro, who expanded his extensive control in the Mezzogiorno from his base in Benevento and Capua. Before his death (March 981), he had gained from Emperor Otto I the title of Duke of Spoleto also. However, both Benevento and Salerno rebelled to his son and heir, Pandulf II.
The first decades of the 11th century saw two more German-descended rulers to southern Italy: Henry II, conquered in 1022 both Capua and Benevento, but returned after the failed siege of Troia. Similar results obtained Conrad II in 1038. In these years the three states (Benevento,
