Shattiwaza was the son of king
Tushratta. Like other Mitanni kings, Shattiwaza took a
throne name derived from
Indo-Aryan. The throne name Shattiwaza means ‘having reached the prize.’
Shuttarna III, who had usurped the throne in his absence was defeated, and Shattiwaza installed as king of
Mitanni. The events are recorded in two treaties of Suppiluliuma and Shattiwaza (sometime between 1345 and 1323 BC). But Piyassili and the Hittites may have received the whole former territory of Hanigalbat/Mitanni west of the Euphrates as the result of these events.
Shattuara is believed to be the next Mitanni king, although the circumstances of how he came to power are uncertain. Assyrian king
Adad-nirari I claimed to be his overlord. ==References==