Laura Dianti (Early sixteenth century in Ferrara – 25 June 1573 in Ferrara, Italy) was an Italian woman. She was a lover and possible third wife of Alfonso I d'Este, Duke of Ferrara.
Biography Laura Dianti was born the daughter of Francesco Boccacci Dianti (d. 1542). She became a mistress of Alfonso I d'Este, Duke of Ferrara (1476-1534) after the death of his second wife, Lucrezia Borgia, daughter of Pope Alexander VI. Laura was most probably his third wife.S. Pellizzer, «DIANTI, Laura», in Dizionario Biografico degli Italiani, Istituto dell'Enciclopedia italiana Treccani, Roma (on-line) She was also known under the pseudonym Eustochia.
Issue The couple had two sons: Alfonso d'Este, Marquis of Montecchio (1527-1587), married firstly Giulia della Rovere and had issue (Dukes of Modena); married secondly in 1584 Violante Signa (1546-1609) and had issue. Alfonsino d'Este, Marchese di Castelnuovo (1530-1547)
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