Cai Yong
"Guan ju" has been the subject of countless allusions over the centuries. Cai Yong (died 192) is one of the earliest to do in his "Qingyi fu" (青衣賦), a poem celebrating the illicit love between a maid and the poem's male persona: "With the purity of "The Calling Ospreys" / She does not act perverse or contrary".