Emperor Chūkyō
…for the Jōkyū Incident, an unsuccessful attempt by Juntoku's father, the Retired Emperor Go-Toba, to overthrow the Kamakura Bakufu. 13 May 1221 (Jōkyū 3, 20th day of the 4th month): In the 11th year of Juntoku-tennō's reign (順徳天皇十一年), the emperor abdicated; and the succession (‘‘senso’’) was received…