Ginevra d'Este (24 March 1419 - 12 October 1440) was an Italian noblewoman.
She and her twin sister Lucia (died 1437) were daughters of Niccolò III d'Este and his second wife Parisina Malatesta - they also had a younger brother, who died aged a few months.
Five years later Niccolò remarried to Ricciarda di Saluzzo, giving Ginevra two other half-brothers (Ercole and Sigismondo), in addition to her father's other illegitimate children.
[4] In 1461 Pope Pius II accused Pandolfo of several crimes, including killing Ginevra, and excommunicated him.
[5] Ginevra is briefly mentioned in The picture of Dorian Gray by Oscar Wilde as its claimed her husband gave her poison "in an emerald cup"