According to the Razadarit Ayedawbon chronicle, she was a commoner named Mwei Thin from the Nagada village near Dagon (modern Yangon).
It was in the dry season of 1389–1390, and Razadarit was in the Irrawaddy Delta with his army and navy to defeat the forces of Lord Laukpya of Myaungmya.
The story goes that the day before the planned naval campaign on Bassein (Pathein), Razadarit sent Thuddhamaya to Lagun Ein's quarters to give his commander a special golden lacquerware box of betel nuts.
When his two superiors, Byat Za and Dein Mani-Yut, went over to inquire, the straight-talking commander confessed that he saw a glimpse of the queen's bosoms through her loose garments when she came by his quarters yesterday, and that he had not been able to focus on anything else since.
[7] He went on to lead the dangerous naval mission that required his flotilla to lure numerically superior Bassein war boats back to where Razadarit's forces had set up a trap.