The Indo-Parthian Dynasty was an offshoot of the great Parthian Dynasty that ruled most parts of Iran in the later parts of the third century BC. During the first century BC, rulers of the Parthian dynasty spread their dominion eastwards, which included parts of north India. The Indo-Parthian Dynasty was established around AD 20, when a ruler named Gondophares broke free from Parthian empire and established his hold over parts of Afghanistan, Pakistan and North India.
The Indo-Parthian kingdom was ruled by a succession of kings, of which the notable ones included Orthagnes, Pacores and Abdagases. Out of these Abdagases was the last ruler of the dynasty. At around AD 75, the regions ruled by Indo-Parthian dynasty were taken over by the rulers of the Kushan dynasty.