Senator Potenciano Treñas was born in Tigbauan, Iloilo on May 13, 1894.
He finished his secondary course at the Ateno de Manila and studied law at home and passed the bar examinations in 1916.
He was appointed member of the provincial board of Iloilo in 1928 and elected Senator from Iloilo in 1934. He died a few weeks after the election because of the disease he contacted during his electoral campaign.
He was married to Estrella Blancaflor.