 Henry attempted to intimidate Robert by ordering him to attend his imperial coronation, and to swear fealty for his imperial fiefs in Piedmont and Provence.With Florence’s encouragement, much of Lombardy flared into open rebellion against Henry, with uprisings throughout December 1311 and January 1312, while in the Romagna, King Robert strengthened his position.Nevertheless, Henry’s supporters managed to capture Vicenza, and he received an embassy from Venice, who offered him the friendship of their city.