Gigliola da Carrara was the Marchioness

Marchioness

Marchioness could refer to:*A noblewoman with the rank of Marquess, or the wife of a Marquess.*The Marchioness, a pleasure boat that was sunk on the River Thames in 1989....

 of Ferrara

Ferrara

Ferrara is a city and comune in Emilia-Romagna, northern Italy, capital city of the Province of Ferrara. It is situated 50 km north-northeast of Bologna, on the Po di Volano, a branch channel of the main stream of the Po River, located 5 km north...

, daughter of Francesco Novello da Carrara, lord of Padua

Padua

Padua is a city and comune in the Veneto, northern Italy. It is the capital of the province of Padua and the economic and communications hub of the area. Padua's population is 212,500 . The city is sometimes included, with Venice and Treviso, in the Padua-Treviso-Venice Metropolitan Area, having...

, son of Francesco I da Carrara

Francesco I da Carrara

Francesco I da Carrara was Lord of Padua from 1350 to 1388.The son of the assassinated Giacomo II da Carrara, he succeeded him as lord of Padua by popular acclamation. In 1356 he was named imperial vicar by emperor Charles IV...

 and Taddea d'Este.

The 13 years old Marchioness of Ferrara

Ferrara

Ferrara is a city and comune in Emilia-Romagna, northern Italy, capital city of the Province of Ferrara. It is situated 50 km north-northeast of Bologna, on the Po di Volano, a branch channel of the main stream of the Po River, located 5 km north...

 married the Marquis Niccolò III d'Este

Niccolò III d'Este

Niccolò III d'Este was Marquess of Ferrara from 1393 until his death. He was also a condottiero.-Biography:...

, son of Alberto V d'Este, in 1394 for 15 years.

She died in the plague leaving no children in 1416. Nicholò then married Parisina Malatesta

Parisina Malatesta

Parisina Malatesta who was known as Laura Malatesta , daughter of Andrea Malatesta, lord of Cesena, and his second wife Lucrezia Ordelaffi.-Biography:...

 whom he condemned to death for adultery with Ugo d'Este

Ugo d'Este

Ugo d'Este, also known as Hugh Aldobrandino , was the son of Niccolò III d'Este and his lover Stella de' Tolomei.-Infancy:...

, and then Ricciarda di Saluzzo, with whom he had his children Ercole I d'Este and Sigismondo d'Este.