Taejo of Goguryeo

6th King of Goguryeo (r. 53–121/146)

King Taejo (claimed 47 – 165) was the sixth monarch of Goguryeo, the northernmost of the Three Kingdoms of Korea, from AD 53 to 146. Under his reign, the young state expanded its territory and developed into a centrally ruled kingdom. His 93-year reign is thought to be the third longest of any monarch in the world, although his claim was disputed.

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