In 1400, the bishops of Münster and Osnabrück joined forces and fought against Nicholas II.
He lost northern parts of his territory, such as Cloppenburg, Vechta, Friesoythe and Bevergern to the Bishop of Münster.
In Lower Lingen, he lost half the parish of Plantlünne and Schapen and the forests of Stade and Spelle.
[1] He was left with the oldest part of the County of Tecklenburg-Lingen, including Ibbenbüren, Iburg, Lienen, Ladbergen and other towns.
Later in his life, Nicholas II fought further feuds against the bishops of Münster and Osnabrück and the Counts of Hoya.