Emperor Kameyama

Emperor Kameyama (1249–1305), the 90th emperor of Japan and younger brother of Emperor Go-Fukakusa, reigned from 1260 to 1274. In 1265 a mission from Kublai Khan reached Japan demanding submission; the court favoured compromise, but the Kamakura shogunate sent the envoys away.

He abdicated in 1274 to his son Emperor Go-Uda and ruled as cloistered emperor, praying at Ise Shrine during the second Mongol invasion of 1281. Distrusted by the shogunate, he lost power in 1287, took Zen vows in 1289, and helped found Kyoto's Nanzen-ji in 1291. His descendants made up the Daikakuji-tō line.