Pope Eugene I

Eugene became bishop of Rome on 10 August 654, stepping into the office after Emperor Constans II deposed and banished Martin I over the Monothelitism controversy — a bitter fight about whether Christ had one will or two. He held the seat through the standoff, navigating the imperial pressure that had destroyed his predecessor. Eugene died on 2 June 657, three years into a papacy defined by the question his emperor refused to let go.