In Malay, Yang di-Pertuan Besar, literally "He Who Is Made Great" or "Great Ruler", is a royal title.

In Malaysia

1. The elected monarch of the state of Negeri Sembilan in Malaysia, himself one of the electors of the federal Yang di-Pertuan Agong.
2. Other historical figures, especially

monarchs of the ancient Johor Empire (circa. 17th-19th century), to differentiate from the "Yang di-Pertuan Muda" ("Under King") - who is usually not Malay but Bugis. However, this was a secondary title, the primary title being sultan.

secondary title of the Sultans of Kedah, of Kelantan, of Perak, of Terengganu

In Indonesia

• secondary title of the Sultans of Asahan (on Sumatra), or Riau/Lingga, of Siaksriindrapura (on Sumatra, broken away from Johor)
• the original title of the Tuan Besar of Kubu (in the Indonesian part of Borneo)

Sources

• RoyalArk- see each monarchy, here Malaysia & Indonesia & http://www.4dw.net/royalark/Indonesia/indon2.htm

id:Yang di-Pertuan Besar