 On 7 May, a 13,865-man Austrian corps was at Castel San Giovanni while Pyotr Bagration with the 5,862-man Russian advance guard was at Voghera, both on the south bank of the Po.Rosenberg with 10,571 soldiers was at Dorno with a 3,075-strong advance guard at Lomello, both on the north bank.Josef Philipp Vukassovich and 5,100 Austrians were farther west, also on the north bank.