Jeonggang (; c.863 – July 28, 887), personal name Kim Hwang, was the 50th ruler of the Koreanic kingdom 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 on July 28, 887. 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 Kye-myŏng Grandmother: Madam Gwanghwa () Mother: Queen Munui (), daughter of King Heonan Maternal grandfather: Heonan of Silla Maternal grandmother: Unknown
See also List of Korean monarchs List of Silla people Unified Silla
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