Hulu Paser

Hulu Paser denotes the inland, upper-river side of the Paser region in southeastern Borneo. Its early modern context belongs to a wider royal domain, whose coastal court should not be confused with every upstream community. Local dynastic history traces the kingdom of Sadurengas to the sixteenth century and identifies the female ruler Putri Di Dalam Petung with its beginnings.

The same historical tradition records a succession of titled rulers during the seventeenth century. In the early eighteenth century Aji Geger bore the title Sultan Aji Muhammad Alamsyah, marking the sultanate within this regional genealogy. By 1799 Sultan Sulaiman Alamsyah appears in the surviving diplomatic correspondence, including a letter sent from Batavia to Paser. These records place the region within relations extending beyond Borneo.