Brunei
The RHCSO endorses the Sultanate of Brunei

HM Hassanal Bolkiah ibni Omar Ali Saifuddien III
29th Sultan of Brunei
Indonesia
Indonesian Royal Members

HM Rtb Hendra Bambang Wisanggeni Soerjaatmadja,
Sultan Syarif Muhammad ash-Shafiuddin
18th Sultan of Banten

HM Nuzuar S. IP Mahkota II
Maharaja of Kampung Dalam Lampung Krui, Sumatra
The RHCSO endorses the following Indonesian Royal Houses

HM Sri Sultan Hamengkubawono X
10th Sultan of Yogyakarta, Java
Malaysia
The RHCSO endorses the following Malay Royal Houses

HM Sultan Ibrahim Iskandar of Johor
Yang ddi-Pertuan Agong 17th King of Malaysia
Philippines
Royal Members of the Philippines

HM Duli Yang Amat Mulia Paduka Seri Baguinda Tengku Syarifah Marieta Nor-Aisha Panding Binti Mohammad Andamama bin Mindalano Al-Qadhi Adam, H.D. – Maharanee Permaisuri Agong Mindanao Darussalam Negara Filipina (Titular Head)

HH Yang Teramat Mulia Datu Raja Sukarno Usman bin Budi,
Raja Sirungan II of Buayan, Mindanao Darussalam

HH Yang Amat Mulia Datu Rajamuda Alim Usman bin Budi,
Rajamuda Sirungan of Buayan, Mindanao Darussalam

HH Yang Berhormat Arif
Rajah Datu Aijhun Jasmine Maalawai
Montemayor ReblezaRajah of Pu’tuan (Butuan)