Cissita was located about 36°54'04"N 10°2' 9.96"W and has been tentatively identified with ruins near Sidi T(h)abet, 24 kilometers from Tunis.
The town was among the many civitates (cities) of the Roman province of Africa Proconsularis of sufficient importance to become a suffragan diocese of the metropolitan of Carthage,[1] in the papal sway, but like most faded completely, probably at the 7th-century advent of Islam.
Two of its bishops are historically documented (one disputed):
Quodvultdeus was among the Donatist bishops present at the Council of Carthage (411), where his schismatic heresy was condemned as such.[2]
The diocese of Cissita was nominally restored in 1933 as the Latin titular bishopric of Cissita (Latin = Curiate Italian) / Cissitan(us) (Latin adjective)[3]
It has had the following incumbents, of the fitting Episcopal (lowest) rank:[4]
Octavio Villegas Aguilar (2005.12.29 – ...), first as Auxiliary Bishop of Archdiocese of Morelia (Mexico) (2005.12.29 – 2015.04.08), then on emeritate (2015.04.08 - ...).