Query: What was the name of the poet Chopin became acquainted with in Paris?
Context: During his years in Paris he was to become acquainted with, among many others, Hector Berlioz, Franz Liszt, Ferdinand Hiller, Heinrich Heine, Eugène Delacroix, and Alfred de Vigny. Chopin was also acquainted with the poet Adam Mickiewicz, principal of the Polish Literary Society, some of whose verses he set as songs.