Page "Nine Years' War" Paragraph 26

Marshal Duras, Vauban, and 30, 000 men – all under the nominal command of the Dauphin – besieged the Elector of Trier's fortress of Philippsburg on 27 September 1688 ; after a vigorous defence it fell on 30 October.

Louis XIV's army proceeded to take Mannheim, which capitulated on 11 November, shortly followed by Frankenthal.

Other towns fell without resistance, including Oppenheim, Worms, Bingen, Kaiserslautern, Heidelberg, Speyer and, above all, the key fortress of Mainz.

After Coblenz failed to surrender, Boufflers put it under heavy bombardment, causing much damage, but it did not fall to the enemy.