[7] Some of literature also called Mong Mao as Baiyi (Chinese: 百夷), but most of the time this is a collective name of all the ethnic groups in south west of Yunnan, or specifically refers to Dai people.

[13] Möng Mao arose in the power vacuum left after the Kingdom of Dali in Yunnan fell to the Mongol Yuan Dynasty around 1254.

This kingdom had asserted some unity over the diversity of ethnic groups residing along the southwest frontier of Yunnan.

"Muang Mao" is sometimes used by authors to refer to the entire group of Tai states along the Chinese-Myanmar frontier including Luchuan-Pingmian (麓川平緬), Muang Yang (Chinese: 孟養; pinyin: Mèngyǎng), and Hsenwi (Chinese: 木邦; pinyin: Mùbāng), even though specific place names are almost always used in Ming and Burmese sources.

Bian-zhang-ga (1990), translated into Thai by Witthayasakphan and Zhao Hongyun (2001), also provides a fairly detailed local chronicle of Möng Mao.

Mong Mao Long, or the white fog of Mong Mao Long, was founded in 56 BC by Hso Hom Hpa, a descendant of the ancient Tai King from Nawng Hsè, who sent his son Hkun Hkam Naw to build the city of Oung Pawng-Hsipaw Later,the city became vacant.

The struggle for the throne led to Hso Kaa Hpa, son of Sao Chang Nyue from Mong Ri Mong Ram (different from Chao Chang Nyue, the 37th saopha of Mong Mao Long) and Mahadevi Phlak Hkam Hsen Mawng, daughter of Sao Tai Lung, the 45th (Sao Pam Myo Pung, his son the 46th saopha, handed over the throne to Hso Kaa Hpa) Hso Kaa Hpa had to evacuated from the Koshanpye.