Yuri of Silla (?–57, r. 24–57) was the third king of Silla, one of the Three Kingdoms of Korea. He is commonly called Yuri Isageum. Family Parents Father: King Namhae of Silla Grandfather: King Hyeokgeose of Silla Grandmother: Lady Aryeong Great-Grandmother: Lady Saso Mother: Lady Unje (알영부인) Consorts and their respective issue: Queen Ilsaeng (이리생부인) Son: King Ilseong of Silla (died 154, r. 134–154) – was the 7th ruler of Silla Queen Kim, of the Kim clan (부인딸 김씨), daughter of Prince Sayo (사요왕의) Son: King Pasa of Silla (died 112, r. 80–112) – was the 5th ruler of Silla, Name As a descendant of Silla's founder Hyeokgeose, his surname was Park. His title was Isageum, also recorded as Ijilgeum or Chijilgeum. This title is a change from Geoseogan (the first king Hyeokgeose) and Chachaung (second king Namhae). The actual Silla word is thought to be Itgeum . Imgeum is the modern Korean word for "King". Background Yuri was the son of Silla's second ruler, Namhae, and his queen Lady Unje. It is unclear how many siblings Namhae had, but he did have a sister. This sister, Princess Ani, was married to a non-Sillan man named Seok Talhae, who originated from an island nation called Tapana. Talhae became a very highly ranked official and Namhae seemed to prefer him as successor instead of his son. This is revealed on Namhae's deathbed, but Talhae insisted that the prince's rise to the throne would be righteous and allowed Yuri to become the next ruler of Silla. Reign According to the Samguk Sagi, the principal source for events of this period, Yuri centralized rule over the aristocracy by turning the six tribes into six official administrative divisions of Silla in 32. He is said to have granted surnames to each of the clans: Yi, Choe, Son, Jeong, Bae, and Seol. He is also said to have created 17 bureaucratic rank levels. However, modern scholars doubt that these occurred so early in Silla's development. In 37, When Muhyul(無恤) attacked Nakrang Kingdom and destroyed it, 5000 people of the Nakrang country surrendered. They were divided into Silla's six divisions. This is when the legend of Princess Nakrang occurred. Silla was attacked by Lelang commandery and other tribes, but made peace with Maekguk(貊國). The Samguk Sagi records that Silla conquered Iseoguk(present-day Cheongdo) in Yuri Isageum era During Yuri's reign, the Silla people celebrated a holiday during