Kostas Krystallis (Greek: Κώστας Κρυστάλλης; 1868–1894) was an Aromanian ethnic, Greek author and poet, representative of 19th century Greek pastoral literature. He was born an Ottoman subject in Epirus, but escaped to Greece after being denounced to the authorities for writing a patriotic collection of poetry. Krystallis initially wrote his works in archaic language, but after 1891 he adopted the vernacular (Demotic) Greek language and became influenced by the New Athenian school. He was a pictorial writer, with a love of nature, while most of his work was based on traditional folk poetry. Source: Wikipedia (en)