stepmother Parisina Malatesta Meliadused'Este, Abbot of Pomposa and Ferrara, (1406–1452). Son by Caterina di Taddeo. Leonello d'Este (1407–1450). Son by Stella
Gallery of Art, Washington. Francesco d'Este was the bastard son of the highly placed Lionello of Meliadused'Este, a marquis of Ferrara, Duke of Modena
Guarino of Verona, he was appointed tutor to Meliadused'Este, the illegitimate son of Niccolò III d'Este, Marquis of Ferrara. He taught the classics there