Late Bronze Age collapse
By the Late Bronze Age, Hittite had started losing ground to its close relative Luwian. It appears that in the 13th century BCE, Luwian was the most-widely spoken language in the Hittite capital, Hattusa. After the collapse of the Hittite New Kingdom during the more general Late Bronze Age collapse, Luwian emerged in the Early Iron Age as the main language of the so-called Syro-Hittite states, in southwestern Anatolia and northern Syria.