Tullius Crispinus
Tullius Crispinus was Praetorian Prefect with Titus [Flavius Genialis] in 193 AD. He was appointed by Didius Julianus, who had just bought the throne from the guard. Didius Julianus had planned to name Septimius Severus his co-emperor and sent Crispinus to deliver the offer. Severus killed him and thus declined the offer.