Complex sentence: After a brief period as acting-manager of the Adelphi Theatre Planché moved to the Olympic Theatre when Lucia Vestris took over the management in 1831, and provided the play with which she began her tenure, "Olympic Revels, or, Prometheus and Pandora".
Split into simpler sentences: After a brief period as acting-manager of the Adelphi Theatre, Planché moved to the Olympic Theatre when Lucia Vestris took over the management in 1831. He provided the first play which she produced, "Olympic Revels, or, Prometheus and Pandora".