Puzur-SinPuzur-Sin was an Assyrian king in the 18th century BC, during the Old Assyrian period.ReignOne of the few known Assyrian rulers to be left out of the Assyrian King List, Puzur-Sin was responsible for ending the rule of the dynasty of Shamshi-Adad I, whom he considered to be foreign usurpers. He overthrew Asinum.