《资治通鉴·唐纪·唐纪五十五》
庚戌，宪宗为皇子更改名字，李宽称作李恽，李察称作李，李寰称作李忻，李寮称作李悟，李审称作李恪。
庚戌，更名皇子宽曰恽，察曰悰，寰曰忻，寮曰悟，审曰恪。
In the Gengxu year, Emperor Xianzong changed the names of the imperial princes. Li Kuan became Li Yun, Li Cha became Li Hou, Li Huan became Li Xin, Li Liao became Li Wu, and Li Shen became Li Ke.