The peace was short-lived, though, because in the same year, the Drenthers and their allies besieged the espicopal forces at the restored Mitspete keep. This action resulted in great losses for the Drenthean army. However, an army from Groningen province was able to capture the Mitspete stronghold and the town of Zuidlaren. A Frisian warband was defeated at Bakkeveen. The Drenthean captain Hendrik van Borculo, who had recruited fresh troops in Westphalia, was able to repel another Frisian party that attacked the Drenthers at the Mitspete keep.