Nevertheless, he found it difficult to maintain his ground against the different princes of the empire.

The duke of Lorraine, who commanded the imperial troops, invested Mentz, and took it by capitulation; the elector of Brandenburgh, having reduced Keiserswaert, undertook the siege of Bonne, which the garrison surrendered after having made a long and vigorous defence.

Nothing contributed more to the union of the German princes than their resentment of the shocking barbarity with which the French had plundered, wasted, and depopulated their country.

Louis having, by his intrigues in Poland and at Constantinople, prevented a pacification between the emperor and the Ottoman Porte, the campaign was opened in Croatia, where five thousand Turks were defeated by a body of Croates between Vihitz and Novi.

The prince of Baden, who commanded the imperialists on that side, having thrown a bridge over the Morava at Passarowitz, crossed that river, and marched in quest of a Turkish army amounting to fifty thousand men, headed by a seraskier.