Jan Kochanowski wrote in Polish and Latin. He wrote "Fraszki", a cycle of epigrams, "Pieśni" ("Cantos") and "Treny" ("Laments"). The last work was written by the poet after death of his daughter Ursula. He lost another daughter, named Hanna, too. Kochanowski wrote also "Pieśń świętojańska o Sobótce" ("Midsummer Night's Song") and "Odprawa połów greckich" ("The Dismissal of the Grecian Envoys"). Many of his poems are free translations from Horace. Kochanowski translated "The Book of Psalms" and "Chess" by Marco Girolamo Vida. Kochanowski established rules of Polish versification and introduced sonnet to Polish poetry. Many poems by Kochanowski were translated into English.