Tiddis was a Roman city that depended on Cirta and a bishopric as "Tiddi", which remains a Latin Catholic titular see.
It was located on the territory of the current commune of Béni Hamidane in the Constantine Province of eastern Algeria.
Wikipedia https://en.wikipedia.org/wiki/Tiddis
Address Algeria
Coordinates 36°27'44.54" N 6°28'56.538" E