Ontoros Antanom — Murut Warrior and Leader of the Rundum Rebellion

Who was Ontoros Antanom?

Ontoros Antanom (also written Antanum, Antanom or Onteros) was a Murut leader who led the Rundum Rebellion of 1915 against the British North Borneo Chartered Company in the interior of North Borneo (now Sabah). The rebellion broke out in February 1915 and its main fighting ended in April 1915 (Kajian Malaysia, Universiti Sains Malaysia, checked 7 October 2026). Malaysian news reports place the Rundum war in the Tenom area (The Vibes, checked 7 October 2026).

Colonial records say little about his early life. Murut accounts describe him as a great warrior believed to have magical protection, a quality Murut tradition linked with great warriors. Mat Salleh, the leader of an earlier rebellion, was believed to have similar powers.

What we know comes from two kinds of source: Company records written by the officers who fought him, and Murut oral narratives passed down in families. Historian Callistus Fernandez has argued that both are needed for a fair picture.

The Murut people under British rule

The Murut are indigenous communities of Sabah's southern interior, today found in districts such as Nabawan, Pensiangan, Tenom, Sipitang and Keningau. In 1915 they were not one united people. Each community was tied to its own river and took its identity from it, and "Murut" was a term used by outsiders (Kajian Malaysia, USM, checked 7 October 2026). Blood feuds between communities were common, and longhouses were built with defences against raids.

As the Chartered Company pushed into the interior, it brought new rules. A bridle path was started in 1901 and had reached Rundum, Pensiangan and Sapulut country by 1907. Murut communities were made to work on it. Trade with outsiders left many Murut in debt, and Dayak police brought into the area were accused of abuses (Kajian Malaysia, USM, checked 7 October 2026).

What drove the Rundum Rebellion?

The causes are debated. Colonial reports and Murut accounts, as summarised by Fernandez (Kajian Malaysia, USM, checked 7 October 2026), point to:

Forced labour. A 1915 Company memorandum named forced labour on the bridle path as the probable cause, as it had been for the Blayong revolt of 1914. Murut accounts speak of work on the path lasting up to three months a year.

Taxation. A poll tax and a Native Liquor Tax had been introduced. Murut accounts count taxes among the main causes; Company officers argued the poll tax had not actually been enforced in the interior. The Sabah Museum describes Antanom as fighting British rule over the head tax (Sabah Museum, checked 7 October 2026).

Rules on farming land. The Ladang Ordinance of 1913 required permits before forest could be cleared for shifting cultivation.

The Blayong rising. In mid-1914, Murut chief Blayong and his men walked off a road construction site and built a fort at Bukit Ulu Tagol. The Company's pursuit of him raised tension across the area (The Vibes, checked 7 October 2026).

One Company officer, by contrast, blamed the rebellion on Ontoros's personal "opportunism" rather than on Company policy.

How did Ontoros organise the resistance?

Fernandez argues that Ontoros's key achievement was uniting river communities that had been feuding with each other. According to Murut narratives he collected, people from many rivers travelled to the Silangit River to help build Ontoros's fort, and elders he interviewed remembered their parents or grandparents making those trips (Kajian Malaysia, USM, checked 7 October 2026).

By the time the rebellion broke out, a district officer estimated that not less than 60 villages were hostile to the Company, from the Dalit River in the north to the Telekoson and Rundum areas.

The rebellion events of 1915

The sequence below follows the colonial records cited by Fernandez (Kajian Malaysia, USM, checked 7 October 2026).

In February 1915 the interior rose in revolt. The first attack was on the Company post at Rundum, where officers N.B. Babaneau and C.H. Pearson were attacked by not less than 600 to 700 Murut warriors. The attackers were beaten back, with about 12 killed and 20 to 30 wounded.

The Company then spent about two months assembling a larger force. In April it marched on Ontoros's fort on the Silangit River. The assault began on 14 April but did little damage. A blockade then cut off the fort's water and food.

British suppression and the end

On 16 April 1915 the defenders said they would surrender, and on 17 April they raised white flags and released their hostages. Ontoros came out with his two lieutenants, Kalur and Ansakul. They were handcuffed and, after a brief inquiry, executed on the orders of the Resident, Bunbury. That night the fighting resumed as people tried to escape the fort. An estimated 350 to 400 Murut were killed and about 300 escaped (Kajian Malaysia, USM, checked 7 October 2026).

Unrest continued for months. Later in April, eight telegraph linesmen were killed and the Company station at Keningau was threatened. The first surrenders came in September 1915.

Murut oral tradition tells the ending differently. One version, recorded by another researcher, says Ontoros was betrayed and could only be killed in a particular way because of his magic. Fernandez found no support for the betrayal story in the narratives he collected or in the colonial files.

Ontoros legacy and recognition today

Ontoros Antanom is honoured in Tenom at Muzium Antanom, in the middle of town on the site of the old European cemetery. The Sabah Museum Department put up a building there in 2009 and opened it to the public. It displays Murut artefacts and crafts, is open daily from 9am to 5pm, and entry is free (Sabah Museum, checked 7 October 2026).

For Murut communities, Ontoros is remembered as a leader who brought rival river communities together against the Company, even though the rebellion failed within a few months.

Sources for the table: Kajian Malaysia, Fitzwilliam Museum, and the Sabah Museum pages for Muzium Antanom and the Mat Salleh memorial (all checked 7 October 2026).

Frequently asked questions