What remains of this once powerful sultanate is a triangular-shaped territory, the base of the triangle being represented by 80 m.
The history of this ancient and decaying sultanate is of some interest.
By the wise action of Si Ahmad bin Musa, the chamberlain of El Hasan, Abd-elAziz's accession to the sultanate was ensured with but little fighting.
During the critical period in which their empire was being established (c. 1505-1550) the Portuguese were fortunate in escaping conflict with any Oriental power of the first rank except Egypt and Turkey; for the Bahmani sultanate of the Deccan had been already disintegrated before 1498, and the Mughals and Mahrattas were still far off.
The district of Banjermasin was incorporated by the Dutch in consequence of the war of 1860, in regard to the succession in the sultanate, which had been under their protection since 1787.