Theobald I of Spoleto

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Theobald I (died 936) was the Duke of Spoleto from 928 to his death. He was the son of Boniface II, former duke, and member of the line of the Hucpoldings, a house of Frankish Ripuarian origin that built its fortunes in Italy since the 9th century. Theobald was an unscrupulous prince, even for his age, and his career is one of constantly changing alliances as the political winds of central and southern Italy changed direction.

The Duke of Spoleto was the ruler of Spoleto and most of central Italy outside the Papal States during the Early and High Middle Ages. The first dukes were appointed by the Lombard king, but they were independent in practice. The Carolingian conquerors of the Lombards continued to appoint dukes as did their successor to the Holy Roman Empire. In the 12th century, the dukes of Spoleto were far and away the most important imperial vassals in Italy.

In 929, Theobald joined Landulf I of Benevento and Guaimar II of Salerno in a series of joint attacks against Byzantine Campania, Apulia, and Calabria. Theobald was detrimental to the others' cooperation and all three were unsuccessful and Guaimar returned to his earlier Greek allegiance.

Landulf I, sometimes called Antipater, was a Lombard nobleman and the Prince of Benevento and of Capua from 12 January 901, when his father, Atenulf I, prince of Capua and conqueror of Benevento, associated his with him in power.

Guaimar II was the Lombard prince of Salerno from 901, when his father retired to a monastery, to his death. His father was Guaimar I and his mother was Itta. He was associated with his father in the principality from 893. He was responsible for the rise of the principality: he restored the princely palace, built the palace church of San Pietro a campanile, and restored gold coinage.

Byzantine Empire Roman Empire during Late Antiquity and the Middle Ages

The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinople. It survived the fragmentation and fall of the Western Roman Empire in the 5th century AD and continued to exist for an additional thousand years until it fell to the Ottoman Turks in 1453. During most of its existence, the empire was the most powerful economic, cultural and military force in Europe. "Byzantine Empire" is a term created after the end of the realm; its citizens continued to refer to their empire simply as the Roman Empire, or Romania (Ῥωμανία), and to themselves as "Romans".

Theobald also allied with Docibilis II of Gaeta against the Greeks.

Docibilis II was the ruler of Gaeta, in one capacity or another, from 906 until his death. He was the son of the hypatus John I, who made him co-ruler in 906 or thereabouts.

Italian nobility
Preceded by
Peter
Duke of Spoleto
928–936
Succeeded by
Anscar

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