Complex sentence: Maurice then went on the offensive seized the fortress of Rheinberg, a strategic Rhine crossing, and subsequently Groenlo, Oldenzaal, and Enschede, before crossing into Germany and capturing Lingen and the county of the same name.
Split into simpler sentences: Maurice then went on the offensive seized the fortress of Rheinberg, a strategic Rhine crossing, and subsequently Groenlo, Oldenzaal and Enschede fell into his hands. He then crossed into Germany and captured Lingen, and the county of the same name.