Visnuraja

Viṣṇurāja was a 10th-century Siamese monarch mentioned in the Ayutthaya Testimonies as the ruler of Phitsanulok. He was described as a descendant of the Padumasūriyavaṃśa dynasty and ascended the throne of Phitsanulok at the age of 20. Viṣṇurāja was married to Queen Indravatidevi, but has no record regarding their offspring. He ruled the kingdom for 30 years and died at the age of 50. His younger brother, Vijayaraja, succeeded him.
The source further records that Viṣṇurāja was enthroned as king of Phitsanulok following the departure of Sudhammaraja, whom Thai scholars have identified with Dhammikaraja, the son of Sai Nam Peung, ruler of Ayodhya. Nevertheless, this assertion appears to be chronologically incongruent, as modern Thai scholars situate both father and son in the 12th century, several centuries after the era traditionally ascribed to Viṣṇurāja.