Dhi Qar Governorate is a governorate in southern Iraq, in the Arabian Peninsula. The provincial capital is Nasiriyah. Prior to 1976 the governorate was known as Muntafiq Governorate. Thi Qar was the heartland of the ancient Iraqi civilization of Sumer, and includes the ruins of Ur, Eridu, Lagash, Larsa, Girsu, Umma, and Bad-tibira. The southern area of the governorate is covered by Mesopotamian Marshes.