From Nancy he marched against the Swiss. He saw fit to hang or drown the garrison of Grandson after its capitulation. Grandson was a possession of Jacques of Savoy, Count of Romont, a close ally of Charles, that had been captured recently by the forces of the Swiss Confederacy. Some days later, on 2 March 1476, Charles was attacked outside the village of Concise by the confederate army in the Battle of Grandson and suffered a defeat; he was compelled to flee with a handful of attendants and abandon his artillery along with an immense booty, including his silver bath and the crown jewel called The Three Brothers commissioned by his grandfather Duke John the Fearless.