Majapahit in its expansionist policy have launched two failed invasions under the reign of Jayanegara and Tribhuwana Wijayatunggadewi to conquer this kingdom.
Nan Sarunai at the time was led by Raden Anyan or Datu Tatuyan Wulau Miharaja Papangkat Amas.
According to oral history, before he died Ampu Jatmika instructed both sons not to succeed him as they are descendant of traders (waisya) and not aristocracy (ksatria) or they will face disasters.
Moreover, she was believed to be the manifestation of the female god Jata or Tambun ruler of the underwater world, which are sometimes described as large naga that support the earth.
[13] This Majapahit prince mentioned in Hikayat Banjar as Rahadyan Putra is believed to be Raden Aria Gegombak Janggala Rajasa.