Denier - William I

William I of Normandy — "Longsword," son of Rollo — ruled the duchy during a period when Norman coinage was still finding its identity, drawing heavily on Carolingian monetary conventions inherited from the Viking settlement treaties of 911. His assassination in 942 at Picquigny, orchestrated by Flemish count Arnulf I, cut short a reign that had seen Normandy consolidate from a Viking enclave into a functioning feudal state with its own monetary output.

Dy féodales #7 places this among the earliest attributable Norman ducal issues — a designation that itself rests on thin documentary ground given how few surviving examples exist with firm provenance.