Wedde
Wedde lies on the Westerwoldsche Aa, on a route between Groningen and Germany. Much of Westerwolde was sparsely inhabited raised bog, forming a borderland between Groningen, East Frisia and the bishopric of Münster. In 1362 the bishop granted Westerwolde to Egge I Addinga, who began building the castle of Wedderborg around 1370. Witch trials held at the castle between 1587 and 1597 led to executions on the nearby Geselberg. The city of Groningen purchased Westerwolde in 1619, and Wedde remained under its authority until 1798.