Introduction
Naehae of Silla (died 230, r. 196–230) was the tenth king of Silla, one of the Three Kingdoms of Korea. He is commonly called Naehae Isageum, isageum being the royal title in early Silla. As a descendent of Silla's 4th king Talhae, his surname was Seok.
Background
He was the grandson of the previous ruler, Beolhyu Isageum. Beolhyu's crown prince Goljeong and second son Imae died early, and Goljeong's son Jobun was too young. Naehae was the son of Imae and Lady Naerye.
Nae married a cousin within the Seok clan. His queen's younger brother Jobun became the next king.
Reign
During his reign, the Samguk Sagi reports cordial relations with the neighboring Gaya Confederacy, and repeated clashes with the rival kingdom Baekje.
Baekje invaded in 199 and 214; Silla responded by conquering Baekje's Sahyeon-seong. Naehae personally led the successful defense to Baekje's next attack in 218.