Thamanglang was a prince of the Ningthouja dynasty of Ancient Manipur (Antique Kangleipak).
He is a son of King Naophangba[2][3] of Ningthouja dynasty and Queen Yaoreibi of Luwang dynasty.
[4] He is a step brother of Sameirang, who later became the king.
[5] He is the progenitor of the yumnaks including Yengkhom, Keithellakpam and Kheirom of the Ningthouja dynasty of the present day Meitei ethnicity.
[6][7]