Fullofaudes was a '' Dux Britanniarum'', a military leader in

Roman Britain Roman Britain was the territory that became the Roman province of ''Britannia'' after the Roman conquest of Britain, consisting of a large part of the island of Great Britain. The occupation lasted from AD 43 to AD 410. Julius Caes ...

in the later fourth century. He was either killed or besieged by the barbarian invaders during the

Great Conspiracy The Great Conspiracy was a year-long state of war and disorder that occurred near the end of Roman Britain. Fourth-century Roman historian Ammianus Marcellinus describes it as a ('barbarian conspiracy') which took advantage of a depleted milit ...

and replaced by Dulcitius when

Count Theodosius Count Theodosius (; died 376), Flavius Theodosius or Theodosius the Elder (), was a senior military officer serving Valentinian I () and the Western Roman Empire during Late Antiquity. Under his command the Roman army defeated numerous threats, ...

came to Britain in 369 to restore order.{{Cite book , last=Hughs , first=Ian , url=https://books.google.com/books?id=TZn9AwAAQBAJ&pg=PA59&dq=Fullofaudes&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjM9omvjuqJAxWkv4kEHdSrD88Q6AF6BAgGEAI#v=onepage&q=Fullofaudes&f=false , title=Imperial Brothers: Valentinian, Valens and the Disaster at Adrianople , publisher=Pen and Sword , year=2013 , pages=56, 58 He was probably defeated in the north of Britain; the outpost forts north of

Hadrian's Wall Hadrian's Wall (, also known as the ''Roman Wall'', Picts' Wall, or ''Vallum Aelium'' in Latin) is a former defensive fortification of the Roman province of Roman Britain, Britannia, begun in AD 122 in the reign of the Emperor Hadrian. Ru ...

were abandoned at this time. It may be that his own troops rebelled under him and switched allegiance to the enemy; Ammianus' description is unclear.

References

Ancient Romans in Britain Ancient Roman generals 4th-century Romans