In the 19th century, I made my stage debut at 18. I performed at Drury Lane and Covent Garden and specialized in "breeches roles." I was a successful actress-manager and producer and I introduced The Box Set in the 1830's. Who am I?

Madame Vestris

Explanation:

Hi, Madame Vestris, was an English actress-manager and producer.

She  Made her  first stage appearance in the title role in von Winter's opera Il Ratto di Proserpina (1815) at the age of 18.

Her first success came at the Drury Lane Theater in the 1820 with revival of Montcrief's Giovanni in London.

She was often said to have introduced the box set, during her management of London's Olympic Theater in the 1830s.

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