 Since 1950, The Royal Ballet has several times made prolonged tours abroad, not the least to the United States, where they have performed his ballets.Bournonville's best-known ballets are "La Sylphide" (1836), "Napoli" (1842), "Le Conservatoire" (1849), "The Kermesse in Bruges" (1851) and "A Folk Tale" (1854).Born in Copenhagen 21 August 1805, Bournonville was the son of the French ballet master Antoine Bournonville, who had settled in Denmark, and Lovisa Sundberg, a Swede.