Mutzig's castle's history goes back to the fortification of the town in 1274 by Rudolph of Habsburg. The medieval castle, a Wasserburg (i.e. surrounded by a moat derived from a canal) was heavily destroyed by the Swedes in 1632, during the Thirty Years' War, after having already been assaulted by Ernst von Mansfeld's troops in 1622. The city's and castle's masters, during these times marked by frequent battles and rivalries between feudal families, were alternatively and sometimes simultaneously the bishops of Strasbourg and the House of Zweibrücken.