Siege of Philippsburg

The siege of Philippsburg is the major operation of the 1734 campaign. After crossing the Rhine, the French army encircles the fortress of Philippsburg, key position on the right bank. The siege is conducted methodically but lasts more than two months. Marshal de Berwick is killed while inspecting the trenches. The final assault is launched under the Marquis d'Asfeld, and the place falls on 18 July.

This siege forms part of the French offensive in the middle Rhine to compel the Empire to recognize Stanisław Leszczyński as King of Poland. Philippsburg, fortified strongpoint of the Palatinate, locks southern access to the right bank of the Rhine.

Vauban-style siege: digging of parallels, continuous bombardment with heavy artillery, progressive destruction of bastions. After several breaches, defenders surrender before a final assault.

The fall of Philippsburg allows the French to threaten the heart of the Holy Roman Empire. It marks a turning point in the war, even though Stanisław will ultimately renounce Poland in exchange for the Duchy of Lorraine. Berwick's death, veteran of many wars, is a significant loss for the French army.