Gigliola da Carrara

In 1386, marriage negotiations between her and a son of Albert II, Duke of Austria begun,[1][2] with her dowry Feltre and Cividale de Belluna.

The marriage never materialized however as Gian Galeazzo Visconti, Lord of Milan paid bribes to not make the betrothal go through.

[2] Visconti was most likely hoping to help strengthen his son's claims to the cities; since Gigliola through her maternal grandmother Verde della Scala she was a descendant of Mastino II della Scala who had once been lord of Vincenza and Verona.

Gian Galeazzo also promised to marry Gigliolas oldest brother Francesco to a daughter of his cousin Alvise Visconti[1] The last legitimate heir, Canfrancescohad died mysteriously in 1392 (most likely poisoned) Gigliolas father distrustful of Gian Galeazzos promises,[1] betrothed her instead to her cousin Niccolò III d'Este, son of Alberto V d'Este (and enemy of Gian Galeazzo[1]) The 13 years old Marchioness of Ferrara married, Niccolò III d'Este, in 1394.

[4] After the Battle of Casalecchio in 1402, her brother Francesco Giacomowho were captured by enemy forces and was being taken to Pavia and Gian Galeazzo Visconti.