Vitalian was a 7th-century bishop of Rome who served as pope from 657 until his death in 672. Born in Segni, he led the Church during a period of significant theological tension, particularly regarding the Monothelite controversy. He attempted to maintain diplomatic ties with the Byzantine imperial government while defending orthodox positions. His leadership also involved managing complex relationships with various regional sees, including the Archbishopric of Ravenna and the clergy in England.