Procillus, C. Vale'rius
a Gallic chief, whose father C. Valerius Caburnus had received the Roman franchise from C. Valerius Flaccus. Caesar placed great confidence in Procillus, and reckoned him as one of his friends.
He employed Procillus as his interpreter in the confidential interview which he had with Divitiacus, and he likewise sent him on a subsequent occasion, along with M. Mettius, as his ambassador to Ariovistus. Procillus was thrown into chains by Ariovistus, but, on the defeat of the latter, was rescued by Caesar in person, a circumstance which, Caesar states, caused him as much pleasure as the victory itself. (Caes. Gal. 1.19