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These policies were continued by Ikunum (1933–1921 BC), Sargon I (1920–1881 BC), likely named after his predecessor Sargon of Akkad, (during Sargon I's later reign Babylon was founded as a small city-state), and Puzur-Ashur II (1880–1873 BC). Naram-Sin (1872–1828 BC) repelled an attempted usurpation of his throne by the future king Shamshi-Adad I late in his reign, however his successor Erishum II was deposed by Shamshi-Adad I in 1809 BC, bringing an end to the dynasty founded either by Ushpia or Puzur-Ashur I.