Euin

Euin (died 595), also Ewin or Eoin, was the first Lombard Duke of Trent (from 569) during the Rule of the Dukes, an interregnum (575–585) during which the Kingdom of Italy was ruled by its regional magnates, the dukes of the thirty or so cities. Euin participated in several significant wars during his long reign. The primary source for his career is Paul the Deacon's Historia Langobardorum.

In 584 the Frankish kings Guntram of Burgundy and Childebert II of Austrasia invaded northeastern Italy. The fortress Anagnis, north of Trent, surrendered to them and was consequently the victim of a plundering expedition by Ragilo, the Lombard count of Lagaris. Ragilo and his army, however, were attacked in the field of "Rotalian" by a Frankish army under Chramnichis. Ragilo and many of his followers, still with their booty, were killed. Chramnichis then moved on to "devastate Trent", but probably this phrase (in Paul the Deacon) refers not to a Frankish occupation of the city itself but just a raid of its environs. At Salurnis, Euin, the duke of Trent, ambushed Chramnichis and killed him. He took the Franks' booty and regained the booty collected by Ragilo. He then drove the Franks from the duchy of Trent.