Yang Amat Mulia Tunku Alif Husain Saif ud-din al-Amin ibni Tuanku Muhriz was born on September 3, 1984, and died on January 15, 2016.
He was the third son of the reigning Yang di-Pertuan Besar of Negeri Sembilan, Tuanku Muhriz ibni Almarhum Tuanku Munawir.
Yang was educated at The Institutes for the Achievement of Human Potential (IAHP), Philadelphia, Pennsylvania, USA.
His siblin where Tunku Ali Redhauddin Muhriz, Tunku Besar of Sri Menanti (born 26 April 1977) and Zain al-‘Abidin ibni Tunku Muhriz (born 6 July 1982)
Tunku Alif Hussein Saifuddin Al-Amin passed away at 31 yrs old.