Mazur is regarded as one of the two Polish national dances. Like the Polonaise, it was first danced by peasants in different regional versions. Eventually adopted by Polish noblemen, it had become a national dance. Mazur also became very popular in European courts under the French name of Mazurka. The rhythm of Mazur is well known from Mazurkas created by the famous Polish composer, Frederic Chopin. Mazur, by Polanie, is danced to music from the opera Straszny Dwor (the Haunted House), written in the 19th Century by Polish composer Stanislaw Moniuszko.