 Jacopo's election owed something to an alliance between Padua's own Ghibelline and Guelph factions, and after his election many Ghibelline exiles returned.Jacopo sent the poet Albertino Mussato, who objected to the "signoria" and pined for the old commune, into exile that year.In 1319 the Ghibelline Cangrande I della Scala besieged Padua and demanded the abdication of Jacopo in return for peace.