He reigned for 10 years (according to his extant year-names and a single copy of the SKL,[i 6] which differs from the 20 years recorded by others.)[i 7][8] Šu-ilišu was preceded by Išbi-erra. Iddin-Dagān then succeeded Šu-ilišu. Šu-ilišu is best known for his retrieval of the cultic idol of Nanna from the Elamites and its return to the city-state Ur.