Gratiana was an ancient city and bishopric in Roman Africa, which remains a latin catholic titular see.
[1][2] Today Gratiana survives as a titular bishopric and the current archbishop, personal title, is Francisco Escalante Molina, apostolic nuncio to the Republic of the Congo and Gabon.
[3] Gratiana, in modern Tunisia, was among the many towns of sufficient importance in the Roman province of Byzacena to become a suffragan of Carthage,[4] but would completely fade, plausibly at the 7th century advent of Islam.
During the Roman Empire the bishopric was centered on a town (now lost to history[5]) in the Roman province of Byzacena.
Three of its bishops are historically documented: The diocese was nominally restored in 1933 as a titular bishopric of Gratiana (Latin) / Graziana (Curiate Italian) / Gratianen(sis) (Latin adjective) It has had the following incumbents, albeit so far none of the fitting Episcopal (lowest) rank but all archiepiscopal: