Charles's route towards Cologne led him past Neuss, one of the centers of resistance against Ruprecht. Fearing the threat Neuss would pose to his exposed rear if left uninvested, Charles prepared to lay siege to the city, and the investment began on 29 July 1474. The Neussers, though they had had only a short time to prepare, laid in enough provisions to last until Christmas. They were led by Hermann, Landgrave of Hesse, and had the support of many nearby towns and cities.