Hariulf (Latin: Hariulfus) was a Burgundian prince during the 4th century.

An inscription records one Hariulfus, son of Hanhavaldus, of the royal family of the Burgundians (regalis gentis Burgundionum), who was already a protector domesticus when he died at the age of twenty in the imperial court in Augusta TreverorumArnold Hugh Martin Jones, The later Roman Empire, 284-602: a social, economic and administrative survey, Blackwell, 1964 (Germania Superior), probably under the Roman Emperor Valentinian IJ. F. Drinkwater, The Alamanni and Rome 213-496 (Caracalla to Clovis), Oxford University Press, 2007 (reign 364-375 AD):

Hariulfus protector I domesticus filius Han/havaldi regalis genti/s Burgundionum qui I vicxit(\) annos XX et men/sis(\) nove(m) et dies nove(m). Reutilo avunculu/s ipsius fecit. 

This inscription was found in 1877 at Trier, Germany.Johannes Hoops, Reallexikon der germanischen Altertumskunde, Volume 14, Walter de Gruyter, 1999

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