Hattusili III
Muwatalli had a wife named Tanu-Ḫepa and at least two children. One was Urhi-Teshup, who became king as Mursili III until his uncle Hattusili III deposed him. Another was Kurunta who became the vassal ruler of Tarhuntassa during the reign of Hattusili III. Another person named Ulmi-Teshup is suggested to be a third son of Muwatalli II, but it is quite likely that Ulmi-Teshup and Kurunta are the same person.