Pattasucarāja () is identified in the Northern Chronicle as a 12th-century monarch who ruled Mueang Chaliang. Although the chronicle does not specify the circumstances or chronology of his accession, the passage concerning him follows that of Uthong I, who is described as having migrated southward in 1188/89 from Mueang Chaliang, together with his elder brother Pra Poa Noome Thele Seri of Sukhothai–Nakhon Thai, and as having assumed the vacant throne at Suphannaphum, while Pra Poa Noome Thele Seri is creditted with the re-foundation of Phrip Phri in 1156/57.
Pattasucarāja is recorded as having two sons: the elder, Dharmatriloka, and the younger, Baramatriloka. Dharmatriloka succeeded his father upon his death and is further recorded as having three sons, the two of whom subsequently married a princess of Ayodhya; both sons later ascended the throne of Ayodhya in succession, first the elder and subsequently the younger, following their father-in-law, Suvarnaraja. Meanwhile, Pattasucaraja's younger prince, Baramatriloka, is recorded in the Ayutthaya Testimonies as having established himself as the ruler of Mueang Sing within a political framework associated with the line of Ekarāja (), who had replaced the pre-existing dynasty. Baramatriloka was subsequently succeeded by two consecutive monarchs, the last of whom, Jatirāja (), was in turn succeeded by his relative Pra Poa Noome Thele Seri in or around the 1150s.
Although the chronicle does not explicitly attest to Pattasucarāja’s ancestry, it notes that his son, Dharmatriloka, was related to the ruler of Oghapurī (; modern Phichit), a polity said to have been established in the 8th century by a descendant of Padumasūriyavaṃśa, who was also the ancestor of the brothers Uthong I and Pra Poa Noome Thele Seri.
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