Jacopo I da Carrara

Jacopo or Giacomo I da Carrara, called the Great (Grande), was the founder of the Carraresi dynasty that ruled Padua from 1318 to 1405. He governed with the advice of the leading citizens during a rule characterized by unity within the city. He is usually considered the first lord of Padua (signore), his election marking the transition from commune ad singularem dominum (to a single lord), a characteristic regime known as a signoria to contemporaries.

Jacopo, a Guelph, led the Paduans to war against Verona in 1311 over the disputed possession of Vicenza. In response to the threat of the Ghibellines and continuous internal feuding, shortly after 25 July 1318 the Paduan aristocracy elected Jacopo as defensor, protector, and gubernator in perpetuity. 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. Taddea moved to Venice on her father's death and there married Cangrande's nephew Mastino II della Scala in the Church of San Giorgio Maggiore.