Pontos Region went through a very turbulent period in the Hellenistic Period, especially in the first century BC. In this century, the Kingdom of Pontos reached the peak of power with Mithradates IV and lived a golden age. However, after this short period of welfare, the same kingdom collapsed in the same period and under the reign of the same king. The rise and fall of the kingdom was about Rome. The Kingdom of Pontos, rising with the victories against the Romans, collapsed after the losses against the Romans and lost its territory to Rome. Eupatoria was one of the unfortunate cities of Pontos, which entered historical records during the collapse of the kingdom in question. Eupatoria had a name that reflects that it was founded by Mithradates IV. Therefore, it had a Pontos identity descending from its founder Mithradates in its roots. In addition, it was a city that witnessed the turbulent periods during which the Pontos Kingdom lived its last moments and fought death and life wars with Rome, and that determined the fate of the kingdom with its strategic position. The name of the city was later changed into Magnopolis after the conquest of the city by the famous Roman commander, Pompeius, who put an end to these wars on behalf of the Romans. As a result, Eupatoria/Magnopolis had the honor to bear the name of two important and great historical figures that had left their mark on the last century of the Hellenistic Period. The political power represented by these two important figures shaped the history of the city. Pontos before, then Rome. Nevertheless, the greatness of the city lived only by its name. This was because the city in question was never able to prove its power in its historical process. That is why it probably could not go beyond being one of the hardest-to-find-cities in the historical records. The city, which entered the historical records during the Mithradates III wars at the beginning of the second quarter of the 1st century BC, was silently erased from the historical records towards the end of the first century AD without leaving deep traces in history.There are issues that need to be clarified in exactly the same way as in the history of Eupatoria / Magnopolis, where the darkest moments in its history are in the majority. These issues have determined the starting point of our article. In the light of the field observations, which include a rock tomb, which can be considered as a new archaeological data to end the mysteries in the history of the city in addition to the ancient and modern sources, the history and localization of the city will be handled simultaneously, and evaluations will be made.