Battle of Heilsberg

The Battle of Heilsberg took place on 10 June [O.S. 29 May] 1807 off the town of Heilsberg (now Lidzbark Warmiński), during the Napoleonic Wars. In it, Joachim Murat's French troops began the offensive on Leonty (Levin) Bennigsen's Russian force ahead of schedule. The opponents fought until nightfall, by which time the French attacks had produced no results. They concluded an operational armistice.