Their maritime importance compelled Narses, the imperial commander, to seek their aid in transporting his army from Grado; and when the Paduans appealed to the Eunuch to restore their rights over the Brenta, the Venetians replied by declaring that islands of the lagoon and the river mouths that fell into the estuary were the property of those who had rendered them habitable and serviceable.
When Ezzelino met his death, in 1259, Padua enjoyed a brief period of rest and prosperity: the university flourished; the basilica of the saint was begun; the Paduans became masters of Vicenza.
The treasury was managed by two chamberlains; and every five years the Paduans sent one of their nobles to reside as nuncio in Venice, and to watch the interests of his native town.
Another Jacopo led the Paduans in 1312 against Cangrande della Scala, lord of Verona, and though taken prisoner managed to negotiate a peace in 1318.
To put an end to the perpetual civil strife the Paduans elected him their lord, and he seems to have governed well, leaving the city at his death (1324) to his nephew Marsiglio, a man famed for his cunning.