Anna Gradenigo (Isabetta)
Anna Gradenigo, also called Isabetta or Elisabetta, was a daughter of the Venetian doge Pietro Gradenigo and Tommasina Morosini. She married Giacomo I da Carrara, the Guelph leader who became the first signore of Padua in 1318; the match won him Venetian citizenship and strengthened his hand in the city's factional strife.
Her daughter Taddea married Mastino II della Scala of Verona in Venice in 1328; a son, Milone, died young. Anna died in 1321, three years before her husband.