At the First Battle of Zurich, Lariboisière's artillery defended the Zurich heights, which gave Andre Massena's army enough time to evacuate the city and take position on the opposite side of the Limmat river. Afterward, Lariboisière was sent to northern Italy where he commanded the advance guard division; Jean Victor Moreau's right wing, with Lariboisière's infantry and artillery, crossed the Ticino river at Pavia, marched up the left bank of the Po River and took position beneath Alessandria; there, he protected Moreau's flank from Russian skirmishers sufficiently for Moreau to establish a large train of artillery in Turin and to strengthen the French positions between the Po and the Tanaro river.