Kollár, who wrote a cycle of sonnets named Slávy Dcera (The daughter of Sláva / The daughter of fame). While Kollár was Slovak, he was a supporter of Pan-Slavism and wrote in Czech, as he disagreed that Slovak should be a separate language. Kollár's magnum opus was planned as a Slavic epic poem as great as Dante's Divine Comedy. It consists of The Prelude written in quantitative hexameters, and sonnets. The number of poems increased in subsequent editions and came up to 645. The greatest Czech romantic poet, Karel Hynek Mácha also wrote many sonnets. In the second half of the 19th century Jaroslav Vrchlický published Sonety samotáře (Sonnets of a Solitudinarian). Another poet, who wrote many sonnets was Josef Svatopluk Machar. He published Čtyři knihy sonetů (The Four Books of Sonnets). In the 20th century Vítězslav Nezval wrote the cycle 100 sonetů zachránkyni věčného studenta Roberta Davida (One Hundred Sonnets for the Woman who Rescued Perpetual Student Robert David). After the Second World War the sonnet was the favourite form of Oldřich Vyhlídal. Czech poets use different metres for sonnets, Kollár and Mácha used decasyllables, Vrchlický iambic pentameter, Antonín Sova free verse, and Jiří Orten the Czech alexandrine. Ondřej Hanus, himself the author of distinguished sonnets, wrote a monograph about Czech sonnets in the first half of the twentieth century. Polish The sonnet was introduced into Polish literature in the 16th century by Jan Kochanowski, Mikołaj Sęp-Szarzyński and Sebastian Grabowiecki. In 1826, Poland's national poet, Adam Mickiewicz, wrote a sonnet sequence known as the Crimean Sonnets, after the Tsar sentenced him to exile in the Crimean Peninsula. Mickiewicz's sonnet sequence focuses heavily on the culture and Islamic religion of the Crimean Tatars. The sequence was translated into English by Edna Worthley Underwood. Russian In the 18th century, after the westernizing reforms of Peter the Great, Russian poets (among others Alexander Sumarokov and Mikhail Kheraskov) began to experiment with sonnets, but the form was soon overtaken in popularity by the more flexible Onegin stanza. This was used by Alexander Pushkin for his novel in verse Eugene Onegin and has also been described as the 'Onegin sonnet', since it consists of fourteen lines. It is, however, aberrant in rhyme scheme and the number of stresses per line and is better described as having only a family resemblance to the sonnet. The form was adapted by other poets later, including by Mikhail