The name of this ruler appears in conjunction with that of three other nobles, Dumnocoveros, Dumnovellau[nos] and Cartivel[ios], each on separate coinage issues minted around 45AD. This is unprecedented within the tribe, who usually minted coins bearing the names of two – or in one case, three – magistrates. It appears that Volisios became the overlord of the Corieltauvi possibly just prior to the Roman invasion, and issued coin bearing the names of his three lieutenants who were to govern separate quarters of the tribal territory. In the face of the Roman advance it would appear that Volisios moved his court northwards into the land of the Parisii, and that his people continued to prosper in this region for several more years.