In the winter of 327–26 BCE, Alexander the Great subdued the Valley of Peshawar during his invasion of Indus Valley, as well as the nearby Swat and Buner valleys. Following Alexander's conquest, the Valley of Peshawar came under the suzerainty of Seleucus I Nicator, founder of the Seleucid Empire. A locally-made vase fragment that was found in Peshawar depicts a scene from Sophocles' play "Antigone".