Daegaya 대가야 大伽倻 was a major chiefdom of the Gaya confederacy during the Korean Three Kingdoms period. Daegaya was located in present-day Goryeong County, in North Gyeongsang Province of South Korea. (It should not be confused with Goryeong Gaya, which was located in present-day Jinju.)
According to "Geographies" in Samguk Sagi, Daegaya existed for about 520 years from the first king, Ijinashi (이진아시왕), to the last, King Doseolji (도설지왕). Daegaya had sixteen kings from King Ininashi to King Doseolji but only four of those are known; 1st King Ijinashi, 9th King Anoi, 16th King Doseolji and King Haji with uncertain generation.
Daegaya played a major role in the Gaya confederacy in 5th century, because of their advanced steel-making craft. Incidental historical records and archeological findings indicate a highly stratified aristocratic society at this time.
King Haji (하지, 荷知) of Daegaya sent an embassy to Namje (南齊, the Southern Qi Dynasty) in 479. According to Chinese records, he received a rank of the third order (one rank below Baekje and Silla). King Haji also allied with Baekje and Silla to attack Goguryeo in 481. Daegaya developed very quickly in the 5th century but their progress was blocked by Baekje and Silla. Daegaya allied with Baekje and joined with Baekje forces in attacking Silla at the battle of Gwan Mountain Fortress in 554. However, both Baekje and Gaya suffered heavy losses, and Daegaya earned the enmity of Silla. This confrontation policy alienated the other states, and Daegaya lost its leadership of Gaya to Ara Gaya.
Facts and Figures :
42 : foundation of the six gaya states (bequeathal history of the three kingdom)
382 : gibonhangi (the king of garaguk) and his sons (baekguji, asuji, guksari, yiramaju and yimunji) escaped with their people to baekje which welcome them (chronicles of Japon)
464 : accepting the rescue request from Silla, the king of gaya sent his troops to Shilla and saved it. (NaJe Dongmaeng)
haji (the king of garaguk) sent his envoys to Namje and received a title, Boguk-janggun-bon-gukwang from it (Chronicle of Namje)
gaya along with baekje (NaJe Dongmaeng) sent the rescue army to Silla when goguryeo and malgal invaded the north border of Silla (historical record of the Three Kingdom)
gaya sent a white pheasant whose tail is 165 cm to Silla (Historical record of the three kingdom)
Baekje claimed Banpaguk (Daegaya) to restitue Gimun territ. (hisotrical record of the three kingdom)
Gijeonhae and Jungmunji of Banpaguk and Sinyihae and Bunpawijwa of Allaguk along with General Jeomungwi of Baekje and Mundeukji or Sara went to Wa.
At that time, Gimun and Daesa were incorporated into Baekje. Banpaguk tried to restore the Gimun land but was not successful (Chronicle of Japan)
Castles were constructed from Jatan and Daesa to Manhae regions des forteresses et des semaphores sont construits en previosn dune attaque de la part du Japon, and another hand castle from Yiyulbi and Masubi to Machahae and Chubong. After gathering soldiers and weapons, Gaya molested Silla (Chronicle of Japan)
The king of gaya proposed and married a younger sister of Yichan Bijobu in Silla (hisorical record of the three kingdom)
The king of daegaya met the king of Silla when he went round the south borderland (Hisorical Record of the Three Kingdoms)
Geunggangmoyasin of Wa went to Gaya with his 60 000 folowers.
They tried to reconstruct Namgara and Takgitan which were destroyed by Silla and to incorporate the two lands into Yimna without sucess (Chronicle of Japan)
Garaguk allied with Silla when the king of Baekje claimed the cession of Dasajin in Garaguk (Chronicle of Japan)
The king of Gara married a royal princess of Silla and she was pregnant.
But, the marriage was broken because 100 servants whom she brought raised a disguise incident.
Silla took the three castles of Gara (Doga, Gopa and Ponamora) and the five castle of north border, while returning (hronicle of Japan)
Chahangi Yitanhae, Daebulson, Guchwiyuri of Alla, Sangsuwi Gojeonhae of Gara, Ah of Hangi of Jolma; Ah of Sanbanhae Hangi, Hahangi Yita of Dara, Ah of Saigi Hangi, Hangi of Jata and Gilbisin of YimnaIlbonbu (Taksun???) went to Baekje and received a rescript
King Seong of Baekje recalled the following fact to YimnaHangi and emphasized the reconstruction of Yimna.
King Seong of Baekje suggested three tactics for the reconstruction of Yimna :
1) To request an army from Wa
2) To arrange Gulryeong and Seongju of Baekje
3) And to banish those people who favor Silla, such as Gilbisin, Hanaejik, Yinasa and Mado
Several men, including Hangi King of Gaya, said that when they returned to their states they will report this point to the king of Alla and the king of Gara (Chronicle pf Japan)
Ureuk and his pupil (Nimun) played for King Jinheung of Silla in Nangseong (Chungju) (historical Record of the three kingdoms)
prior to this event, King Gasil manufactured the Gaya harp and ordered Ureuk to compose 12 tunes, but Ureuk exiled to Silla as his motherland came to fall into disorder. (historical Record of the three kingdoms)
Gaya along with Baekje attacked the Gwansanseong (Okcheon) but they were defeated by Silla (historical Record of the three kingdoms)
562 :Collapse of Daegaya
June 562, Gaya people were killed by Sillas attack.
562 : the prince of Daegaya and Sangson Joljigong went to Silla and gave up because they were unable to endure the attack of King Jinheung. Daegaya was collapsed due to the attack of general Yisabu of Silla (historical Record of the three kingdoms).