Soseong of Silla (r. 798–800) was the 39th to rule 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 grandson of King Wonseong

Wonseong of Silla

Wonseong of Silla was the 38th to rule the Korean kingdom of Silla. He was a twelfth-generation descendant of King Naemul. His father was Kim Hyo-yang, and his mother was Lady Gye-o, the daughter of Pak Chang-do...

, his father Kim In-gyeom having died before he could take the throne. He married Lady Gyehwa, the daughter of the daeachan Suk-myeong.

Soseong died only nineteen months after taking the throne. This brought on a renewal of the succession strife which typified later 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...

.