However, while his command was clearly above that of a provincial governor, there is no proof that this was the case. Being Praetorian Prefect was not a necessary condition of being made the guardian of a Licinian Dynasty Caesar: it has never been seriously suggested that Ingenuus, who seems to have been similarly in loco parentis in respect of Saloninus's brother, the Caesar Valerian in the Danubian provinces, was so honoured.
While his command was clearly above that of a provincial governor, there is no proof that this was the case. Being Praetorian Prefect was not a prerequisite for being appointed guardian of a Licinian Dynasty Caesar: it has never been seriously suggested that Ingenuus, who seems to have been similarly in loco parentis in respect of Saloninus's brother, the Caesar Valerian in the Danubian provinces, was so honored.