Background
1350-1315 British Columbia (or possibly ca 1380-1346 British Columbia) and succeeding his father Ammishtamru I. He took his name from the earlier Amorite ruler Niqmaddu, meaning "Addu has vindicated" to strengthen the supposed origins of his Ugaritic dynasty in the Amorites.
Career
He was a contemporary of the Egyptian ruler Amenophis IV and the Hittite ruler Shuppiluliuma I, and was a vassal of the latter. He had good relations with Egypt, and conceded to the Amorites in a dispute over the Shiyannu region early in his reign. He commissioned the Baal cycle about the god Haddu/Ba"al, and had a son, Niqmepa.
He is identified in Syrian on an alabaster vase along with a woman in Egyptian court dress, and is mentioned in the Baal cycle as King nqmd.
He was succeeded briefly by Ar-Halba.