Justin de Jacobis was an Italian Catholic bishop and missionary born in San Fele in 1800. A member of the Congregation of the Mission, he was ordained a priest in Brindisi in 1824 and later provided aid during a cholera epidemic in Naples. He is primarily recognized for his extensive missionary work in East Africa, where he served as the Vicar Apostolic of Abyssinia and the first Prefect Apostolic of Ethiopia.