Sattappa Ramanatha Muthiah Chidambaram Chettiar was the eldest son of S. Rm. Muthiah Chettiar and the progenitor of the M. Ct. family.
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.