Complex sentence: In the 1610s, Middleton began his fruitful collaboration with the actor William Rowley, producing "Wit at Several Weapons" and "A Fair Quarrel"; working alone he produced his comic masterpiece, "A Chaste Maid in Cheapside", in 1613.
Split into simpler sentences: In the 1610s, Middleton began a fruitful collaboration with the actor William Rowley, producing "Wit at Several Weapons" and "A Fair Quarrel". Working alone he produced his comic masterpiece, "A Chaste Maid in Cheapside", in 1613.