Hyogong of Silla (r. 897–912) was the 52nd ruler of the Korea

Korea

Korea ) is an East Asian geographic region that is currently divided into two separate sovereign states — North Korea and South Korea. Located on the Korean Peninsula, Korea is bordered by the People's Republic of China to the northwest, Russia to the northeast, and is separated from Japan to the...

n kingdom of Silla

Silla

Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

. He was the illegitimate son of King Heongang

Heongang of Silla

Heongang of Silla was the 49th to rule the Korean kingdom of Silla. According to the Samguk Sagi, he excelled at civil affairs. Heongang was the eldest son of King Gyeongmun; his mother was Queen Munui...

 by Lady Uimyeong. He married the daughter of Ichan Ugyeom. His reign saw the expansion of Later Three Kingdoms

Later Three Kingdoms

The Later Three Kingdoms of Korea consisted of Silla, Hubaekje , and Hugoguryeo . The latter two were viewed as heirs to the earlier Three Kingdoms of Korea, which had been united by Silla, even though Hugoguryeo has little to do with Goguryeo...

 powers Taebong

Taebong

Taebong or Later Goguryeo was a state established by Gung Ye on the Korean peninsula in 901, during the Later Three Kingdoms period.-History:...

 and Hubaekje

Hubaekje

Hubaekje, or Later Baekje, was one of the Later Three Kingdoms of Korea, along with Hugoguryeo and Silla. It was officially founded by the disaffected Silla general Gyeon Hwon in 900, and fell to Wanggeon's Goryeo army in 936. Its capital was at Jeonju, in present-day North Jeolla province...

 across what had once been the western marches of Unified Silla

Unified Silla

Unified Silla or Later Silla is the name often applied to the Korean kingdom of Silla, one of the Three Kingdoms of Korea, when it conquered Baekje in 660 and Goguryeo in 668, unifying the southern portion of the Korean peninsula...

.

In 905, Silla lost its holdings to the northeast of Jungnyeong

Jungnyeong

Jungnyeong is a mountain pass in the Sobaek Mountains of central South Korea. It reaches a height of . It stands on the flank of Sobaeksan, which reaches more than twice that height....

 pass. In 907, Gyeon Hwon

Gyeon Hwon

Gyeon Hwon was the king and founder of Hubaekje, one of the Later Three Kingdoms of Korea. Some records render his name as "Jin Hwon" . He was also the progenitor of the Hwanggan Gyeon clan...

's Hubaekje forces seized ten castles to the south of Ilseon. Faced with these defeats, the king turned to drink and neglected state affairs. Upon his death in 912, he was buried to the north of Sajasa temple.

See also

• List of Korean monarchs
• List of Silla people
• Later Three Kingdoms of Korea