original: Originally it was a part of the earldom of Bentheim, before it became independent in 1454.
simplifications: It was a part of the earldom of Bentheim, until it became independent in 1454. It was a part of Bentheim at first, before independence in 1454. Before becoming independent in 1454, it was originally part of Bentheim. Originally, it was a part of the earldom of Bentheim. It became independent in 1454. Originally it was a part of the earldom of Bentheim. It became independent in 1454. It used to be part of the earldom of Bentheim until 1454. Initially, it was part of the kingdom of Bentheim, before it's independence in 1454. It was a part of the earldom of Bentheim. It became independent in 1454. At first, it was part of the land managed by the Earl of Bentheim, before it became free in 1454. Before it became independent in 1454, it was formally part of earldom of Bentheim.