 Yawnghwe included the subsidiary states of Mawnang (Heho), Mawson, Loimaw, Loi-ai and Namhkai.Historically the majority of the population in the state belonged to the Intha, Pa-O, Danu, Shan and Taungyo people groups.The state of Yawnghwe formally accepted the status of British protectorate in 1887.