What Is the Negeri Sembilan Royal Crisis and Why Does It Matter?
Negeri Sembilan, Malaysia’s ninth state, is in the grip of an unprecedented constitutional dispute. In April 2026, four traditional chiefs — known as the Undang Yang Empat — made a dramatic declaration attempting to remove the state’s ruler, Yang di-Pertuan Besar Tuanku Muhriz ibni Almarhum Tuanku Munawir, and install a replacement. The move sent shockwaves through Malaysia, prompting police warnings, a flood of legal opinions, and a deeply polarised public debate.
This is the story of what happened, who the key players are, and what the law actually says.
Who Are the Key Players in This Crisis?
Tuanku Muhriz ibni Almarhum Tuanku Munawir is the 11th Yang di-Pertuan Besar (Supreme Ruler) of Negeri Sembilan. He ascended the throne on 29 December 2008, following the death of his predecessor Tuanku Ja’afar ibni Almarhum Tuanku Abdul Rahman. Tuanku Muhriz is known for his principled public stance — most notably, a January 2026 speech in which he described corruption as “the foremost enemy of justice and trust.”
The Undang Yang Empat are the four hereditary chiefs of Negeri Sembilan’s four territorial divisions (Luak). They are:
Datuk Mubarak bin Dohak — Undang Luak Sungei Ujong (the 10th)
Datuk Maarof Mat Rashad — Undang Luak Jelebu
Datuk Muhammed Abdullah — Undang Luak Johol
Datuk Abdul Rahim Yasin — Undang Luak Rembau (installed September 2024)
Under Negeri Sembilan’s unique constitutional system — rooted in the Minangkabau-derived Adat Perpatih — the Undang Yang Empat hold the prerogative power to elect, and theoretically remove, the Yang di-Pertuan Besar.
Dato’ Seri Utama Aminuddin bin Harun is the Menteri Besar (Chief Minister) of Negeri Sembilan. He has firmly backed Tuanku Muhriz throughout this crisis.
Tunku Nadzaruddin ibni Almarhum Tuanku Ja’afar is the youngest son of the late Tuanku Ja’afar, and was named by the Undang as the proposed replacement for Tuanku Muhriz.
What Makes Negeri Sembilan’s Constitutional System Unique?
Negeri Sembilan is the only Malaysian state with a fully matrilineal (Adat Perpatih) royal system inherited from the Minangkabau people of West Sumatra, who migrated to the peninsula from the 15th century onwards. Under this system:
The Yang di-Pertuan Besar is elected — not inherited — by the Undang Yang Empat from a pool of eligible princes
The Undang themselves are hereditary chiefs whose positions are legitimised by the Ibu Soko — the senior matriarch of each clan, whose consent is required for any appointment or removal
Power is distributed between the ruler, the Undang, and the matriarchal clan system in a way that has no parallel elsewhere in Malaysia
The Negeri Sembilan Constitution 1959 codifies these arrangements, creating a framework that balances royal authority with traditional checks.
Sources:
On Tuanku Muhriz’s anti-corruption speech: https://www.malaysiakini.com/news/773373
On the Negeri Sembilan Constitution 1959 and Adat Perpatih: https://www.freemalaysiatoday.com/category/opinion/2026/04/23/why-negeri-sembilan-is-not-in-a-constitutional-crisis
On the MB’s rejection of the declaration: https://www.freemalaysiatoday.com/category/nation/2026/04/20/state-govt-does-not-recognise-declaration-to-depose-negeri-sembilan-ruler-says-mb