The dynasty
Sulu’s royal genealogies trace its dynasty to Abu Bakr in the fifteenth century.
Royal origins and institutions · Saleeby, pp. 161–164 ↗
North Borneo as an integral part of the
historic Sultanate of Sulu.
Traced through royal genealogies, territorial grants and diplomatic agreements.
Before the Company. Before the Charter. There was the Sultan of Sulu.
The Sultanate of Sulu was not a kingdom of fences and fixed borders. It was a realm of water and allegiance.
Tausug, Sama, Yakan and others spoke different languages and lived different lives. Islam, trade and loyalty bound them to the Sultan at Jolo, to his datus, and to the council of nobles called the Ruma Bichara.
At its height, that allegiance reached from the Sulu islands to Basilan and southern Palawan, and across the sea to the northeast coast of Borneo.
For three centuries, Spain tried to break it. Jolo was attacked, burned and occupied. The Sultanate endured.
Sulu tradition holds that northeast Borneo came to the Sultanate around 1704, a reward from Brunei for Sulu’s help in a civil war. Brunei’s chroniclers dispute it. But long before the British Company arrived, Sulu’s title was on the record. In 1774, the British hydrographer Alexander Dalrymple dated the grant to 1704.
Along that coast, at Marudu Bay, at Sandakan, on the Kinabatangan, Tausug datus tied to Jolo by kinship and allegiance controlled the trade. Birds’ nests, pearls, camphor and sea cucumber moved through Sulu hands to Chinese junks. Historian James Warren maps this world in The Sulu Zone.
When Britain first wanted northern Borneo, it went to Jolo.
In 1761, Dalrymple signed a treaty with the Sultan of Sulu for the East India Company, ratified by Sulu’s nobles. In 1762, the Sultan granted the Company the island of Balambangan. By the end of 1763, the grant included northern Borneo itself. That is recorded by William Treacher, the first Governor of British North Borneo.
Spain protested. Its argument was that it held authority over Sulu, and through Sulu, over the Sultan’s dependencies in Borneo.
Britain and Spain disagreed about almost everything in these waters. Yet both treated northern Borneo as territory within the Sultan of Sulu’s domain.
A century later, the British came back. Again, they came to the Sultan.
On 22 January 1878, Sultan Jamalul Alam granted Alfred Dent and Baron von Overbeck rights over the coast from the Pandassan River to the Sibuku.
Then the Sultan acted as a sovereign. He appointed Overbeck to office as Datu Bendahara and Rajah of Sandakan, with power to make laws, levy taxes and raise armed forces. Every one of those powers was delegated from the Sultan’s own authority.
A European businessman governed Sandakan under a title and powers conferred by the Sultan of Sulu.
Weeks earlier, the Sultan of Brunei had issued grants over overlapping land. The Company did not choose between them. It paid both.
The grant turned on one word: padajak.
The British English translation says the land was ceded. In Sulu’s reading, padajak meant lease: the use of the land in return for a yearly payment, with the land itself never sold.
The annual payment arrangement outlived the Sultan. His heirs received it. When the Crown took over North Borneo after the Second World War, Britain paid. When Malaysia was formed in 1963, Malaysia paid.
From 1878 until payments stopped in 2013, the arrangement linked North Borneo to the Sultan of Sulu and his heirs.
In 1881, Britain chartered the British North Borneo Company. The next year, Foreign Secretary Earl Granville told the House of Lords that the charter gave the Crown no sovereignty. The territory, he said, remains under the suzerainty of the Sultan.
The story did not end with the Company.
In 1946, Britain made North Borneo a Crown colony. The Sultan's heirs continued to maintain that the land had been leased, and that their rights survived the transfer.
In 1962, the Philippines took up a claim derived from the Sultanate's sovereign rights. The next year, the Manila Accord expressly preserved that claim and any rights under it when North Borneo entered Malaysia. Malaysia and the Philippines reaffirmed the Accord in 1966.
In 2011, the Philippine Supreme Court confirmed that the country's statutory claim to Sabah remained in force. It did not decide international sovereignty. But it documented something essential: the claim had not disappeared.
Colonial governments changed who administered the land. They did not erase the Sultanate's place in its history, or end the assertion of rights inherited from Sulu.
From the Sultan's court at Jolo to the river settlements of North Borneo, this was a history of people, allegiance and inherited authority.
Its record survives in royal genealogies, the original Jawi agreement, the Sultan's commission, and the diplomatic agreements that followed.
A history of belonging. A claim carried forward.
The North Borneo Papers. History lives in evidence.
Sulu is a sultanate centred on Jolo, in the islands between Mindanao and Borneo.
Family and trade linked Jolo to North Borneo’s coast, in present-day Sabah.
Geography and institutions · Saleeby, chapters I–III ↗
Sulu’s royal genealogies trace its dynasty to Abu Bakr in the fifteenth century.
Royal origins and institutions · Saleeby, pp. 161–164 ↗Sulu traces its North Borneo possessions to a Brunei grant, traditionally dated around 1704.
Willi, 1922 · p. 40 ↗Settlement, marriage and trade connected Borneo’s coastal communities to Jolo before Company rule.
Warren, 1979 · pp. 226–228 ↗
22 January 1878
Two instruments, issued on the same day: a territorial grant and a commission to govern.

The grant exchanged coastal rights for an annual payment. Conklin’s translation calls it a “permanent lease,” supporting Sulu’s position that the Sultan retained title.
The grant and Conklin’s translation ↗The Sultan appointed Overbeck to govern Sandakan, with powers to make laws and levy taxes.
The commission · Saleeby, p. 226 ↗
The history of Sulu continues through its royal family, its council and the communities that sustain them.
A 1974 presidential order supported Sultan Mahakuttah’s confirmation by the Ruma Bechara. The Royal House records his son Muedzul Lail Tan Kiram’s coronation in 2012 and his assertion of its North Borneo inheritance.
The confirmation and succession record ↗This continuity concerns an inherited institution and its territorial claim. Government of present-day Sabah remains Malaysian.
In 1946, the British Crown took over from the Company. The Sulu claim outlived that transfer: the Sultan’s heirs maintained their rights, and the Philippines took their case into state diplomacy.The 1946 transfer ↗

1962
In 1962, the Philippines took up a claim derived from Sulu’s sovereign rights. The heirs’ position was that North Borneo had been leased, with title retained.
Read the record ↗1963–1966
The 1963 Manila Accord expressly preserved the claim and any rights under it. Malaysia and the Philippines reaffirmed that framework in 1966.
Read the record ↗1966 reaffirmation ↗2011
In 2011, the Philippine Supreme Court confirmed that the statutory Sabah reservation remained in force. This preserved the domestic claim; it did not adjudicate international sovereignty.
Read the record ↗
North Borneo’s relationship with Sulu was territorial, political and cultural. Colonial administration changed who governed; it did not erase that history or end the assertion of Sulu-derived rights.
15 records to explore

The National Archives, Kew · reproduction via Wikimedia Commons

Saleeby, Diagram I · Sultans and royal datus

Saleeby’s map of the Sulu Archipelago

Translation attributed to Harold Conklin · Reagan Library enclosure

Agreement opening page · Reagan Library enclosure

Dewan Bahasa dan Pustaka Brunei · Wikimedia Commons

Willi · Internet Archive

Sabah State Attorney-General’s Chambers

Sabah State Attorney-General’s Chambers

Sabah State Attorney-General’s Chambers

Sabah State Attorney-General’s Chambers

Sabah State Attorney-General’s Chambers

Willi, The Early Relations of England with Borneo, p. 40

Commission reprinted in Saleeby, 1908, p. 226

Manila Accord, paragraph 12 · UN Treaty Series