[German version] C. Valerius T. was a respected man from the province of Gaul, who had the confidence of Caesar, who sent him as his interpreter to Diviciacus  in 58 BC (Caes. Gall. 1,19,3). Identifying him with C. Valerius Procillus, son of C. Valerius Caburus, the chieftain of the Helvii, and brother of Donnotaurus, is debatable. The latter and M. Mettius [I 1] were sent as Caesar's negotiators to the camp of Ariovistus, but were taken prisoner and freed by Caesar personally (Caes. Gall. 1,47,4; 1,53,5). Helvii Spickermann, Wolfgang (Bochum) Bibliography Evans, 380-382.