Mirimidongguk

Mirimidongguk was one of the 12 tribes or polities making up the Byeonhan confederation. It is mentioned in the "San guo zhi", and is generally believed to have been located near the modern-day city of Miryang in Gyeongsangnam-do, South Korea.
Later Mirimidongguk was absorbed into Geumgwan Gaya. By the early 6th century, it had fallen under the sway of Silla; in 505, it was formally integrated into Silla as the county of Chuhwa-gun.