Wikipedia
DU–Teššup was the son of Aziru, of the 1350– 1335 BC Amarna letters correspondence, and also the father of Aziru's successor, in Amurru-(regional Syria). DU-Teššup's name refers to the Hurrian god of sky and storm, Teshub.
Aziru, and his father Abdi-Ashirta, were some of the major instigating forces-(in the north) causing conflict with the Egyptian pharaoh, as cities–(' city-states'), and regions were under constant threat and destruction in the northern, and western Canaan region-( Lebanon, and southern Syria).
DU–Teššup is the presumed author of tablet-letter EA 169-( EA is for 'el Amarna') written to pharaoh, requesting Aziru's return from "forced" consultation. DU–Teššup is not mentioned by name in the Amarna letters corpus.