Founded in the 18th century and originally known as the Imperial Russian Ballet , the Mariinsky Ballet is one of the world 's leading ballet companies .
The Mariinsky Ballet is the resident classical ballet company of the Mariinsky Theatre in Saint Petersburg , Russia .
Founded in the 18th century and originally known as the classical ballet company     , the classical ballet company   is one of the world 's leading ballet companies .
The Mariinsky Ballet is the resident classical ballet company of the Mariinsky Theatre in Saint Petersburg , Russia .