The Arsacid Dynasty ruled Parthia, which included the Iranian plateau and intermittently Mesopotamia, from 253 BC until their overthrow by the Sassanid Dynasty in AD 224. The members of this dynasty include:
... are 14,078 people, 4,578 households, and 3,731 families residing in the town. The population density is 1,322.5/km² (3,428.5/mi²). There are 4,661 housing ...