 Rim-Sin I of Larsa reported destroying Der in his 20th year.Ammi-Ditana of Babylon also recorded destroying the city wall of Der in his 37th year, that he said had been built earlier by Damqi-ilishu of the Sealand Dynasty.In 720 BC the Assyrian king Sargon II moved against Elam, but the Assyrian host was defeated near Der by the combined army of king Humban-Nikash I of Elam and king Marduk-apla-iddina II of Babylon.