Original sentence: Although parts of the territory to be claimed (amongst others the Duchy of Cleves, the Duchy of Jüllich and Bentheim used to be part of territories that later became Dutch, and the Dutch language and culture had a large influence in East Frisia, Bakker Schut was aware that it was difficult to claim this area purely on historical grounds
Edited sentence: Although parts of the territory to be claimed (amongst others the Duchy of Cleves, the Duchy of Jüllich and Bentheim) used to be part of territories that later became Dutch, and the Dutch language and culture had a large influence in East Frisia, Bakker Schut was aware that it was difficult to claim this area purely on historical grounds