In 1254 Someshwara divided his kingdom between his two sons, Ramanatha who ruled from Kannanur and Narasimha III who ruled from Halebidu, their original capital.
According to this theory, when the Hoysala Empire succumbed to the Mogul invasion in 1327 (and the capital Halebidu was sacked), the Hoysala family withdrew to the Tonnur region (modern Tondanur near Melkote in modern Mandya district) and continued to rule from there as petty chieftains under the Vijayanagara Empire.