Analysis of information sources in references of the Wikipedia article "Yi Kang" in English language version.
仁穆大妃懲國婚之禍作，書遺本家，世世勿連姻王室，至是思濬上之，后愛金氏容德堅不許，……堈旣出閤，驕侈好貨賄，……干訟徵債如追贜…… (After the disastrous events due to her marriage, Queen Inmok left a note to her family, hoping them never marry the royalties again; the note was given by Kim Sajun to Queen Min, but she liked the virtue of his daughter and persisted her decision. ...After he married, Yi Kang started to live luxuriously and accept bribes,... lawsuits and those who came for debt collection appeared as if they were recovering loots... )
朝野皆知新皇帝不慧，且無嗣屬望，……嚴貴妃方專寵，欲貴其子，厚賂博文，冀得其力；義親王堈，年雖長，多失儀、無人望，且孤立援少……由是衆議自歸於垠，援定宗朝故事，立爲皇太子。 (The people by the time knew that the new emperor was not exactly smart and there's no hope for him to produce an heir,... Lady Eom, the Imperial Noble Consort just gained much love from the Emperor [Emeritus] and she wanted to promote her son's position, so she bribed Itō Hirobumi for his support; the Prince Imperial Ui, despite being elder, had many scandals and lost reputation, making him lack to support... and so, people eventually agreed to make Yi Un the crown prince, following the precedent from King Jeongjong of Joseon.)
