Early town established as municipium Aelium Hadrianum Napocenses, then in second century elevated to Colonia status as Colonia Aurelia Napoca. and by 124 was the cxpitol of the new province of Dacia Porolissensis. City abandoned circa 274.
http://en.wikipedia.org/wiki/Cluj-Napoca
http://www2.rgzm.de/Transformation/Romania/Civitates/Abb11Engl.htm