The Royal Ballet is an internationally renowned classical ballet company, based at the Royal Opera House in Covent Garden, London, England. The largest of the four major ballet companies in Great Britain, the Royal Ballet was founded in 1931 by Dame Ninette de Valois, it became the resident ballet company of the Royal Opera House in 1946 and was granted a royal charter in 1956, becoming recognised as Britain's flagship national ballet company.
The Royal Ballet was one of the foremost ballet companies of the 20th century, and continues to be one of the world's most famous ballet companies to this day, generally noted for its artistic and creative values. The company employs approximately 100 dancers and has purpose built facilities within the Royal Opera House. The official associate school of the company is the Royal Ballet School, and it also has a sister company, the Birmingham Royal Ballet, which operates independently. The Prima ballerina assoluta of the Royal Ballet is the late Dame Margot Fonteyn.