 He is the earliest monarch of whom the present Barunais have any knowledge, a fact to be accounted for partly by the brilliance of his exploits, partly by the introduction about that time of Arabic writing.After much fighting he subdued the people of Igan, Kalaka, Seribas, Sadong, Semarahan, and Sarawak [Most of the ethnics extinct due to illness and disease] and compelled them to pay tribute.He stopped the annual payment to Majapahit of one jar of pinang juice, a useless commodity though troublesome to collect.