Heungdeok of Silla

Heungdeok (777–836; r. 826–836) was the 42nd ruler of the Korean kingdom of Silla. He was the younger brother of King Heondeok. He was married to Queen Jeongmok, the daughter of King Soseong.

Upon rising to the throne, Heungdeok made Kim Yu-jing his prime minister (sijung) and appointed Chang Pogo to the command of the Cheonghae Garrison. Chang later used this as a basis for dominating Silla politics through the mid-9th century. banbi, a short-sleeved garment which had been introduced from the Tang dynasty in the times of Kim Chunchu He also issued an edict forbidding "excessive luxuries" to the common people. He also issued the ban edicts of gold and silver ware even for people who held the status of jingol, only allowing the use of silver-plated ware; thus intending to return to the time (mid-Silla period) when the royalty of Silla had the monopoly over gold and silver ware.

In 836, Heungdeok died without an heir, which sparked a bloody power struggle between rival members of the royal family of Silla. His tomb was in the north of Angang-hyeon, now Angang-eup, Gyeongju, South Korea.

Family Grandfather: Wonseong of Silla Grandmother: Queen Kim (Lady Yeonhwa; ), of the Kim clan, the daughter of Father: Prince Hyechung (; 750–791/792), posthumously named King Hyechung Mother: Queen Seongmok, of the Kim clan Wife: Queen Jeongmok, of the Kim clan , known as Madan Janhwa the daughter of King Soseong.

In popular culture Portrayed by Park Sang Hyun in the 2004 KBS TV series Emperor of the Sea