Borso d'Este, Duke of Ferrara

Borso d'Este (1413 – August 20, 1471) was Duke of Ferrara, and the first Duke of Modena, which he ruled from 1450 until his death. He was a member of the House of Este.

He was an illegitimate son of Niccolò III d'Este, Marquess of Ferrara, Modena and Reggio, and his mistress Stella de' Tolomei. Borso succeeded Leonello d'Este in the marquisate on October 1, 1450.

On May 18, 1452 he received confirmation over his fiefs, as Duke, by Emperor Frederick III. On April 12, 1471, in St. Peter's Basilica, he was also appointed as Duke of Ferrara by Pope Paul II.

Borso followed an expansionist policy for his state, and one of ennobling for his family. He was generally allied with the Republic of Venice, and enemy both to Francesco I Sforza and the Medici family. These rivalries led to the indecisive Battle of Molinella. He was in general appreciated by his subjects. One cause of grievance was his project to build a mountain from scratch in 1471— a folly he was later forced to abandon.

Borso's court was the center of the so-called Ferrarese school of painting, whose members include Francesco del Cossa, Ercole dei Roberti and Cosimo Tura. Their most important commission during Borso's rule were the frescoes in the Palazzo Schifanoia and the Borso D'Este Bible. He also protected numerous musicians, including Pietrobono del Chitarrino, Niccolò Todesco e Blasio Montolino.

...
Wikipedia