Gaius Tettius Africanus Cassianus Priscus was a Roman eques who held a number of appointments during the reigns of the emperor Vespasian and his sons.
His progression through these three senior appointments is documented in an inscription in Asisium, now at the church di S. Pietro in Assisi, in which he is saluted at "most devout and munificent for the homeland and citizens".
We have little information on the dates, let alone about the facts, of his tenure as commander of the vigiles or overseer of the annonae.
In contrast, we are better informed about Priscus' term as governor of Egypt, which he held from 80 to 82.
[4] Graffiti on one of the Colossi of Memnon dated to 2 December 82, gives us the name of his wife, Funisulana Vettula.