An Undang is a ruling chief or territorial chief who still play an important role in the state of Negeri Sembilan. The name is believed to be derived from the Malay word undang-undang meaning law. Traditionally, the Minangkabau who settled in Negeri Sembilan, at the end of the 17th Century choose from amongst themselves a 'penghulu' or headman. Several of these 'penghulus', notably that of Sungai Ujong, Jelebu, Johol and Rembau became powerful enough to exalt themselves above other 'penghulus'. By the early part of the 18th Century, the leaders of these four districts started calling themselves 'Undang'.