was the 91st emperor of Japan, according to the traditional order of succession. His reign spanned the years from 1274 through 1287. This 13th-century sovereign was named after the 9th-century Emperor Uda and go- (後), translates literally as "later"; and thus, he is sometimes called the "Later Emperor Uda," or in some older sources, may be identified as "Emperor Uda, the second" or as "Emperor Uda II." Genealogy Before his ascension to the Chrysanthemum Throne, his personal name (imina) was Yohito (世仁). He was the second son of Emperor Kameyama. They were from the Daikaku-ji line. Consort: Imperial Princess Reishi (姈子内親王; 1270–1307) later Yūgimon'in (遊義門院), Emperor Go-Fukakusa's daughter Consort: Horikawa (Minamoto) Motoko (堀河（源）基子) later Nishika'mon-in (西華門院; 1269–1355), Horikawa Tomomori's daughter First son: Imperial Prince Kuniharu (邦治親王) later Emperor Go-Nijō Lady-in-waiting: Itsutsuji (Fujiwara) Chushi (五辻（藤原）忠子; 1268–1319) later Dantenmon'in (談天門院), Itsutsuji Tadatsugu's daughter First daughter: Imperial Princess Shōshi (1286–1348) (奨子内親王) later Tatchimon-in (達智門院) Second son: Imperial Prince Takaharu (尊治親王) later Emperor Go-Daigo Third son: Imperial Prince Priest Shōen (性円法親王; 1292–1347) Fourth son: Imperial Prince Priest Shokaku (承覚法親王; b. 1294) Consort: Princess Mizuko (瑞子女王) later Eikamon'in (永嘉門院; 1272–1329), Prince Munetaka's daughter Consort: Ichijo-no-Tsubone（一条局）, Hashimoto Sanetoshi's daughter Fifth Son: Imperial Prince Priest Shosi (性勝法親王; d. 1354) Consort: Princess Rinshi (掄子女王), Prince Munetaka's daughter Second daughter: Imperial Princess Baishi (禖子内親王) later Sūmeimon-in (崇明門院), married Imperial Prince Kuniyoshi Consort: Itsutsuji Munechika's daughter Third daughter: Imperial Princess Tōshi/Chūshi (愉子内親王) Consort: Kazan'in Nagamasa’s daughter Princess Consort: Shinsanmi-no-tsubone (新三位局) Prince (b. 1307) Events of Go-Uda's life Yohito-shinnō became crown prince in 1268. According to the terms of the late emperor's will (Go-Saga died in 1272), in 1274, he would become emperor upon the death or abdication of Emperor Kameyama. 6 March 1274 (Bun'ei 11, 26th day of the 1st month): In the 15th year of Kameyama-tennōs reign (亀山天皇十五年), the emperor abdicated; and the succession (senso) was received by his cousin. 4 May 1274 (Bun'ei 11, 26th day of the 3rd month): Emperor Go-Uda is said to have acceded to the throne (sokui). The retired Emperor Kameyama continued to exercise power as cloistered emperor. During his reign, the unsuccessful Mongol invasions of Japan occurred, first in 1274 and again in 1281. Though they established a beachhead at Hakata, Kyushu, they were driven out within a short time. 23 November 1275 (Kenji 1, 5th day of the 11th month): Hirohito-shinnō was named Crown Prince and heir to his first cousin, the