consul B. C. 358, with C. Fabius Ambustus, carried on war with the Hernici, whom he conquered, and obtained in consequence the honour of a triumph. Two years afterwards, B. C. 356, he was named magister equitum by the dictator C. Marcius Rutilus. Rutilus was the first plebeian dictator, and Proculus the first plebeian magister equitum. (Liv. 7.12, 15, 17.)