in support of their reasons, stating that the founder had warned against adopting foreign customs and traditions. Yejong replied that Taejo's warning was directed at extravagant and unnecessary spending, and insisted on the monetary policy, but ultimately the coins failed to spread on a large scale; the silver currency was instead used continuously until the end of the dynasty, mainly by the nobles. In the years 1109, 1110, 1117 and 1120, Goryeo was hit by famine, epidemics and several natural disasters. To respond to the damage caused and social changes, including the emergency of displaced farmers, the government reorganized the local administration, taxation and labor system, implementing agricultural promotion policies such as the cultivation of military lands () and abandoned lands. In 1112, the Hyeminguk () was born for the free distribution of medicines to the poor, and in 1113 the Yeuisangjeongso () was established to define new rules for clothing, etiquette and document management. Later years and succession In the latter period of his reign, Yejong focused on strengthening the position of the crown prince Wang Hae. Mindful of what happened with his father Sukjong, who had ascended the throne by carrying out a coup d'état against the eleven-year-old King Heonjong, he considered the need to support the crown prince with a strong power to prevent the situation from happening again, should the prince became king at an early age. He therefore chose Yi Ja-gyeom, his maternal relative, who led the most influential aristocratic family of the time, the Yi of Inju/Gyeongwon. Necessity to adjudicate factional struggles and the strain of managing complicated diplomatic and military efforts led Yejong to retreat further and further into his books and Taoist rituals. Yejong was succeeded upon his death by his 13-year-old son Wang Hae. He was buried in Gaeseong in Yureung tomb. The annals of his reign were compiled by three historians, including Kim Bu-sik. Family Father: Sukjong of Goryeo (고려 숙종) Grandfather: Munjong of Goryeo (고려 문종) Grandmother: Queen Inye (인예왕후) Mother: Queen Myeongui (명의왕후) Grandfather: Yu-Hong (유홍) Grandmother: Lady, of the Gyeongju Gim clan (부인 경주김씨) Consorts and their Respective issue(s): Queen Gyeonghwa of the Incheon Yi clan(경화왕후 이씨; 1079–1109); first cousin – No issue. Queen Sundeok of the Incheon Yi clan(순덕왕후 이씨; 1094–1118) Crown Prince Wang Hae (태자 왕해) Princess Seungdeok (승덕공주) Princess Heunggyeong (흥경 공주) Noble Consort, of the Gaeseong Wang clan (귀비 왕씨; d. 1138); half