The pope, Boniface IX., being at enmity with the Romans, went to Scesi, where he remained till the jubilee of 1400, when the Romans, to induce him to return to the city, consented to receive another foreign senator of his appointing, and also allowed him to fortify the castle of Saint Angelo: having returned upon these conditions, in order to enrich the church, he ordained that everyone, upon vacating a benefice, should pay a year's value of it to the Apostolic Chamber.
After the death of Giovanni Galeazzo, duke of Milan, although he left two children, Giovanmaria and Filippo, the state was divided into many parts, and in the troubles which ensued Giovanmaria was slain.

Filippo remained some time in the castle of Pavia, from which, through the fidelity and virtue of the castellan, he escaped.

Among others who occupied cities possessed by his father, was Guglielmo della Scala, who, being banished, fell into the hands of Francesco de Carrera, lord of Padua, by whose means he recovered the state of Verona, in which he only remained a short time, for he was poisoned, by order of Francesco, and the city taken from him.

These things occasioned the people of Vicenza, who had lived in security under the protection of the Visconti, to dread the greatness of the lord of Padua, and they placed themselves under the Venetians, who, engaging in arms with him, first took Verona and then Padua.
At this time Pope Boniface died, and was succeeded by Innocent VII.

The people of Rome supplicated him to restore to them their fortresses and their liberty; but as he would not consent to their petition, they called to their assistance Ladislaus, king of Naples.