into a tributary relationship with Baekje, which controlled the southwestern Korean peninsula as Tamna gave military aide with some sort of money, and enjoyed strong ties with Japan. It was thus a natural partner for Tamna. As Baekje waned, Tamna turned to Silla instead. At some point near the end of the Three Kingdoms period, Tamna officially subjugated itself to Silla. Silla then conferred on the three princes of Tamna the titles which they would hold for the remainder of the kingdom's history: Seongju (성주, 星主), Wangja (왕자, 王子), and Donae (도내, 都內). Some sources indicate that this took place during the reign of King Munmu of Silla in the late 7th century AD. Tamna briefly reclaimed its independence after the fall of Silla in 935. However, it was subjugated by the Goryeo Dynasty in 938, and officially annexed in 1105. However, the kingdom maintained local autonomy until 1404, when Taejong of Joseon placed it under firm central control and brought the Tamna kingdom to an end. One interesting event that took place during these later years of Tamna was the Sambyeolcho Rebellion, which came to a bloody end on Jeju Island in 1274. Alexander Vovin (2013) notes that the old name for Jeju Island is tammura, which can be analyzed in Japanese as tani mura たにむら ( 'valley settlement') or tami mura たみむら ( 'people's settlement'). Thus, Vovin concludes that Japonic speakers were present on Jeju Island before being replaced by Koreanic speakers sometime before the 15th century. Sovereigns and governors of Tamna The Go clan is the family name of the kings that ruled Tamna, and the first king was one of the three who emerged from the ground. His descendants became the future kings and governors of Tamna. Sovereigns and governors of West Tamna The Go(Jeju) clan is the family name of the Grand Duke(Seongju, 성주, 星主), that ruled West Tamna. *Based on Tamnaji(탐라지, 耽羅志), Goryeosa(고려사, 高麗史) and The Veritable Records of Joseon Dynasty (조선왕조실록, 朝鮮王朝實錄) Sovereigns and governors of East Tamna The Moon(Nampyeong) clan is the family name of the Grand Prince(Wangja, 왕자, 王子), that ruled East Tamna. *Based on Tamnaji(탐라지, 耽羅志), Goryeosa(고려사, 高麗史) and The Veritable Records of Joseon Dynasty (조선왕조실록, 朝鮮王朝實錄) See also History of Korea Three Kingdoms of Korea References External links Naver Encyclopedia article (in Korean) Jeju Government's History and Culture of Tamna site (in English) Ancient peoples Former countries in Korean