Since the 19th c. the Marinsky Theatre has been home to ballet company known by this name in the U.S.
Since its inception, the Mariinsky Opera, formerly known as the Kirov Opera
,... [DOC] [TLE] Mariinsky Ballet | Russian ballet company | Britannica.com [PAR] Prominent Russian ballet company, part of the Mariinsky Theatre of Opera and ... 
the Imperial Russian Ballet, are based on the work of such leading 19th-century 
... of Opera and Ballet, and the company became known as the Kirov Ballet.