Potaissa was a legionary fortress and later a city in the Roman province of Dacia, located in today's Turda, Romania. It appears on the Tabula Peutingeriana as Patavissa between Salinae and Napoca.
Wikipedia https://en.wikipedia.org/wiki/Potaissa_(castra)
Address Romania
Coordinates 46°34'14.362" N 23°46'19.93" E