Jeonggang of Silla (c.863–887) (r. 886–887) was the 50th ruler of the Korean kingdom of Silla. He was the son of King Gyeongmun; his siblings included his predecessor King Heongang and his successor Queen Jinseong. Jeonggang rose to the throne when his brother Heongang died without an heir. Jeonggang died in turn less than two years later. In his final year, he put down the rebellion of Kim Yo. The tomb of King Jeonggang lies to the southeast of Borisa in Gyeongju. Family Parents Father: Gyeongmun of Silla (841–875) Grandfather: Kim Gye–myeong (김계명) Grandmother: Madam Gwanghwa (광화부인) Mother: Queen Munui (문의왕후), daughter of King Heonan Maternal grandfather: Heonan of Silla (헌안왕) Maternal grandmother: Unknown See also List of Korean monarchs List of Silla people Unified Silla References Silla rulers 887 deaths 9th-century Korean monarchs Year of birth unknown Year of birth uncertain