Alduin, Auduin, or Audoin was king of the Lombards

Lombards

The Lombards , also referred to as Longobards, were a Germanic tribe of Scandinavian origin, who from 568 to 774 ruled a Kingdom in Italy...

 from 546 to 560. The Lombards became, under him, fœderati

Foederati

Foederatus is a Latin term whose definition and usage drifted in the time between the early Roman Republic and the end of the Western Roman Empire...

 of the Byzantines

Byzantine Empire

The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

 (541), signing a treaty with Justinian I

Justinian I

Justinian I ; , ; 483– 13 or 14 November 565), commonly known as Justinian the Great, was Byzantine Emperor from 527 to 565. During his reign, Justinian sought to revive the Empire's greatness and reconquer the lost western half of the classical Roman Empire.One of the most important figures of...

 which gave them power in Pannonia

Pannonia

Pannonia was an ancient province of the Roman Empire bounded north and east by the Danube, coterminous westward with Noricum and upper Italy, and southward with Dalmatia and upper Moesia....

 and the north. Beginning in 551, he was obliged to send troops to serve Narses

Narses

Narses was, with Belisarius, one of the great generals in the service of the Byzantine Emperor Justinian I during the "Reconquest" that took place during Justinian's reign....

 in Italy

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 against the Ostrogoth

Ostrogoth

The Ostrogoths were a branch of the Goths , a Germanic tribe who developed a vast empire north of the Black Sea in the 3rd century AD and, in the late 5th century, under Theodoric the Great, established a Kingdom in Italy....

s. The next year (552), he sent over 5,000 men to defeat the Goths on the sides of Vesuvius. He died in 563 or 565 and was succeeded by his son, Alboin

Alboin

Alboin was king of the Lombards from about 560 until 572. During his reign the Lombards ended their migrations by settling in Italy, the northern part of which Alboin conquered between 569 and 572...

, who brought the Lombards into Italia.

He married Rodelinda

Rodelinda (6th century)

Rodelinda was a Lombard queen who lived in the 6th century. She was the wife of king Audoin and mother of king Alboin.She was the first wife of Audoin, regent for the infant king of the Lombards Walthari from 540 to 546/547 and king in his own right from 546/547 to an uncertain date after 552, and...

, the daughter of Amalaberga

Amalaberga

Amalaberga was the daughter of Amalafrida, daughter of Theodemir, king of the Ostrogoths. Her father is unknown, her uncle was Theodoric the Great. She married Hermanfrid, king of the Thuringii. They had a son named Amalafrid and a daughter Rodelinda, who married the Lombard king Audoin...

 and Hermanfrid, king of the Thuringii

Thuringii

The Thuringii or Toringi were a Germanic tribe which appeared late during the Völkerwanderung in the Harz Mountains of central Germania around 280, in a region which still bears their name to this day — Thuringia. They evidently filled a void left when the previous inhabitants — the...

.