given to the royalties normally incorporate a city name or its modified form, and the holders are known in English as the Prince or Princess of that city. The sovereign may grant titles to other royal-family members: Somdet Phra Prathom Borom Ratchachonok: HRH Prince Father of Rama I Somdet Phra'' Rupsirisobakya Mahanaknari: HRH Princess Rupsirisobakya Mahanaknari, Mother of Queen Amarindra Somdet Phra Piyamavadi Sri Bajarindra Mata: HRH Princess Piyamavadi Sri Bajarindra Mata, Mother of Queen Saovabha Bongsri Somdet Phra Sri Savarindira Barom Raja Devi: HM Queen Sri Savarindira, Queen Grandmother of Rama VIII and Rama IX Somdet Phra Mahitaladhibes Adulyadejvikrom Phra Borom Ratchachonok: HRH Prince Mahidol Adulyadej, Prince Father of Rama VIII and Rama IX Somdet Phra Debaratanarajasuda Chao Fa Maha Chakri Sirindhorn Rathasimagunakornpiyajat Sayamboromrajakumari: HRH Princess Sirindhorn, the Princess Royal (Daughter of Rama IX and Younger Sister of Rama X) See also Thai honorifics Rama (Kings of Thailand) Regnal name Saopha (Shan States) Thai nobility Notes References Jones Robert B., 1971, Thai Titles and Ranks, Including a Translation of Royal Lineage in Siam by King Chulalongkorn, Data Paper No. 81. Ithaca: Southeast Asia Program, Department of Asian Studies, Cornell University Finestone Jeffrey, 1989, The Royal Family of Thailand: The Descendants of King Chulalongkorn Rabibhadana M.R. Akin, 1996, The Organization of Thai Society in the Early Bangkok Period 1782 – 1873 Foreign Correspondents' Club of Thailand, 2007, The King of Thailand in World Focus External links Pronunciation of Thai royal and noble titles at www.forvo.com Thai monarchy