The Royal Opera House (ROH) is a theatre in Covent Garden, central London. The building is often referred to as simply Covent Garden, after a previous use of the site. The ROH is the main home of The Royal Opera, The Royal Ballet, and the Orchestra of the Royal Opera House (now known collectively as the Royal Ballet and Opera). . The first theatre on the site, the Theatre Royal (1732), served primarily as a playhouse for the first hundred years of its history. In 1734, the first ballet was presented. A year later, the first season of operas, by George Frideric Handel, began.
https://en.wikipedia.org/wiki/Royal_Opera_House