Huoching of Alamannia was an Alamanni

Alamanni

The Alamanni, Allemanni, or Alemanni were originally an alliance of Germanic tribes located around the upper Rhine river . One of the earliest references to them is the cognomen Alamannicus assumed by Roman Emperor Caracalla, who ruled the Roman Empire from 211 to 217 and claimed thereby to be...

c nobleman.
According to the 9th century Vita Hiudowici by Thegan, he was the son of Gotfrid

Gotfrid

Gotfrid, Gotefrid, or Gottfried was the Duke of Alemannia in the late seventh century and until his death. He was of the house of the Agilolfing, which was the dominant ruling family in Bavaria....

 Agilolfing (ca. 650-709).
Huoching's son Hnabi

Hnabi

Hnabi or Nebi was an Alemannic duke in the eighth century. He was a son of Huoching and perhaps a grandson of the duke Gotfrid, which would make him a scion of the Agilolfing dynasty of Bavaria. He was the founder of the "old" line of the Ahalolfings...

 (Nebi) was the founder of the Ahalolfings

Ahalolfings

The Ahalolfings or Alaholfings were a noble family of Alemannia in the Early Middle Ages. The family rose in the Carolingian Empire to possess lands in not only Alemannia, but Bavaria, Franconia, and Italy. Their original power base was around the upper Neckar and Danube rivers.The Ahalolfings are...

 dynasty which rose to prominence in Alamannia in the Carolingian period.
The Agilofing descent has been doubted in scholarship. Wenskus (:497-500) has suggested a connection of Huoching and Hnabi to the historical Nibelungs. Jänichen (1976) compares the father-and-son pair Hoc and Hnaef in Old English heroic poetry (Beowulf

Beowulf

Beowulf , but modern scholars agree in naming it after the hero whose life is its subject." of an Old English heroic epic poem consisting of 3182 alliterative long lines, set in Scandinavia, commonly cited as one of the most important works of Anglo-Saxon literature.It survives in a single...

, Finnsburgh fragment, Widsith

Widsith

Widsith is an Old English poem of 144 lines that appears to date from the 9th century, drawing on earlier oral traditions of Anglo-Saxon tale singing. The only text of the fragment is copied in the Exeter Book, a manuscript of Old English poetry compiled in the late 10th century containing...

) suggesting that Huoching and Hnabi are the historical template for these names in later heroic poetry

Germanic Heroic Age

The Germanic Heroic Age, so called in analogy to the Heroic Age of Greek mythology, is the period of early historic or quasi-historic events reflected in Germanic heroic poetry.- Periodisation :...

.
In this, Jänichen is following a suggestion made as early as 1849 by John Mitchell Kemble

John Mitchell Kemble

John Mitchell Kemble , English scholar and historian, was the eldest son of Charles Kemble the actor and Maria Theresa Kemble....

in History of the Saxons in England (p. 419).