Complex sentence: He bought the Olympic Theatre in 1813 and also had an interest in a patent theatre, the Theatre Royal, Birmingham, but ill-health and misfortune culminated in his bankruptcy in 1826, when he made his last appearance at Drury Lane as Falstaff.
Split into simpler sentences: He bought the Olympic Theatre in 1813 and also had an interest in a patent theatre, the Theatre Royal, Birmingham. Ill-health and misfortune culminated in his bankruptcy in 1826, when he made his last appearance at Drury Lane as Falstaff.