Battle of San Pietro

Within the Franco-Sardinian offensive in northern Italy to support the claim of Stanisław Leszczyński, the French army meets Austrian forces near Parma. Fighting is fierce, notably around the fortified village of San Pietro. Tenacity of French infantry and Sardinian cavalry allows the Austrians to be repulsed after several hours of struggle.

France seeks to weaken the Habsburg Empire by supporting the Sardinian attack in Lombardy. San Pietro is a strategic lock between Parma and the Po. The battle occurs amid political uncertainty surrounding the Polish succession.

Traditional linear combat, successive infantry attacks on Austrian hedges and redoubts. Effective use of cavalry on the wings to outflank and disorganize enemy lines. Stubborn Austrian resistance in the villages. On 29 June, the Franco-Sardinian army marched from three o'clock in the morning: the infantry passed along the walls of Parma and halted at the Crocetta inn, while Mercy engaged battle around ten o'clock and was killed around one o'clock as the French were being pushed back.

The victory strengthened the Franco-Sardinian position in the Duchy of Parma. It prepared the great offensive at Guastalla and weakened Austrian capabilities on the Po plain. The Imperials left 6,162 dead and wounded on the battlefield; besides Marshal de Mercy, four generals perished and the allies recovered lost ground up to the Secchia, taking Guastalla, Reggio, and Modena.