Verdi's i Lombardi Alla Prima Crociata

During the First Crusade, the brothers Arvino and Pagano are torn apart by Pagano's jealous obsession with Arvino's wife Viclinda. After Pagano accidentally kills their father instead of Arvino, he is banished and eventually becomes a hermit in the Holy Land. Years later, the brothers are unknowingly reunited during the siege of Jerusalem, and Pagano dies heroically, redeemed at last.