Complex sentence: The ballet's setting is a dance studio at the Paris Conservatoire, a location familiar to Bournonville who had studied there in the 1820s with the renowned dancer Auguste Vestris.
Split into simpler sentences: The ballet's setting is a dance studio at the Paris Conservatoire. Bournonville was quite familiar with the Paris Conservatoire having studied there in in the 1820s with the renowned dancer Auguste Vestris.