Complex sentence: Early in 1882, Langtry quit the production team at the Haymarket and started her own company, touring the UK with various plays, still under the tutelage of Henrietta Labouchere.
Split into simpler sentences: Early in 1882, Langtry quit the production team at the Haymarket and started her own company, touring the UK with various plays. She was still under the tutelage of Henrietta Labouchere.