《金史·列传·卷二十七》
皇帝对宰臣说： 宋朝前废帝叫他叔叔湘东王为 猪王 ，让他在栏圈中吃饭，作为戏笑。
上谓宰臣曰： 宋前废帝呼其叔湘东王为 猪王 ，食之以牢，纳之泥中，以为戏笑。
The emperor said to the prime minister: "The former deposed emperor of the Song Dynasty called his uncle King Xiangdong the "Pig King", and made him eat in a pen as a joke."