Mohammad Yusof bin Mohamed Alam (24 June 1948 â 13 December 2004) was a member of the Bruneian royal family. He was the brother of Queen Saleha and the husband of Princess Nor'ain. Yusof was also a civil servant who served as the Chief of Jabatan Adat Istiadat Negara, or Department of State Customs, and was a member of several state councils.
Mohammad Yusof was born on 24 June 1948 in Kampong Sumbiling Lama, Brunei Town to Pengiran Anak Mohamed Alam bin Pengiran Anak Abdul Rahman and Pengiran Anak Besar binti Pengiran Anak Metassan.
Yusof began his education at the school set up for royal children at Istana Darul Hana. He then attended Gurney English School in Kuala Lumpur, Sultan Omar Ali Saifuddien College in Bandar Seri Begawan, and Victoria Institution in Kuala Lumpur. He continued his education at Stafford House Tutorial College in London.
In August 1967, Yusof married Princess Nor'ain in a two week long celebration.
Yusof's father, Pengiran Anak Mohamed Alam, and Nor'ain's mother, Queen Damit, were siblings making them first cousins. Two of his siblings also married the siblings of his wife. His sister, Queen Saleha married Sultan Hassanal Bolkiah in 1965 and his sister, Zariah, married Prince Mohamed in 1970.
Yusof and Nor'ain had eight children all of whom have the style of Yang Amat Mulia and the title of Pengiran Anak.
In July 1968, he became a member of the Cheteria after which he was responsible for managing and observing royal ceremonies in order to ensure its accordance to tradition and customs.
From April 1970 to August 1971, Yusof served as the Deputy Controller of the Department of Immigration and National Registration. He was then appointed as the Deputy Chairman of the National Customs and Excise Department before being promoted to Chairman on 1 December 1981. He retired as the chairman on 30 March 2000.
In 1971, Yusof became a member of the Jabatan Adat Istiadat Negara or Department of State Customs. On 1 December 1981, he was appointed as the Chief (Yang Di-Pertua) of the department. He retired on 31 March 2000.
Mohammad Yusof also served on the Privy Council, Syariah Council, and Succession Council.
On 13 December 2004, Yusof died at his home in Kampong Telanai. Abdul Aziz Juned alongside members of the royal family carried out the prayers at his home. His body was brought to and buried at the Royal Mausoleum.
In 1968, Yusof was granted the Cheteria title of