Adal Sultanate
Emperor Amda Seyon I of Ethiopia conquered many of the adjacent independent Muslim sultanates during his reign. In 1329, Sulṭān Ḥaydar of Dawaro was captured and imprisoned together with his ally Sulṭān Sabir ad-Dīn Maḥamed. Despite several rebellions and a brief period when Ahmeduddin Badlay a powerful Somali ruler from Adal Sultanate captured Dawaro and turned it into a vessel of Adal and after the weakening of Adal Sultanate, the opportunist Oromos captured the vassal state and assimilated the local native Somali population. Just like many Somalis in Hararghe, the Jarso people were also assimilated into the Oromo confederation after the weakening of Adal Sultanate by its war with the Ethiopian Empire and Portuguese Empire.