Haddu, identified with the modern Tell Malhat ed-Deru (تل مليحة الدور), was an ancient kingdom in northern Syria in Deir ez-Zor Governorate.
History
Early Bronze
In the middle of the third millennium BC, the Kingdom of Haddu flourished and controlled the middle Khabur valley.
Ebla-Mari War
It was ruled by its own monarch who was a vassal of Ebla, and fought against the kingdom of Mari. The king of Haddu declared to Mari's ambassador that he "I and Ebla have a pact of peace. And the oath of the pact is before Kura (the main Eblaite god) and before Hadda".
Archi, Alfonso (2010). "Hadda of Ḫalab and his Temple in the Ebla Period". IRAQ. 72: In Honour of the Seventieth Birthday of Professor David Hawkins. Cambridge University Press - On Behalf of The British Institute for the Study of Iraq (Gertrude Bell Memorial). ISSN0021-0889. JSTOR20779017.
Further reading
Kühne, Hartmut (1983). "Tall Malhat ed-Deru: Eine Station auf de Wegenach Kappadokie Kappadokien". In Boehmer, Rainer Michael; Hauptmann, Harald (eds.). Beiträge zur Altertumskunde Kleinasiens: Festschrift für Kurt Bittel (in German). Mainz am Rhein: Philipp von Zabern. ISBN978-3-805-30585-3.{{cite book}}: CS1 maint: publisher location (link)
Quenet, Philippe; Sultan, Ahmad (2014). "New Research in the Area of Malhat ed-Deru, Northeast Syria (Autumn 2010)". In Bieliński, Piotr; Gawlikowski, Michał; Koliński, Rafał; Ławecka, Dorota; Sołtysiak, Arkadiusz; Wygnańska, Zuzanna (eds.). Proceedings of the 8th International Congress on the Archaeology of the Ancient Near East. 30 April – 4 May 2012, University of Warsaw. Vol.2: Excavation and Progress Reports Posters. Otto Harrassowitz Verlag. ISBN978-3-447-10174-5.