Costanza Sforza, Duchess of Sora


Costanza Sforza of Santa Fiora was an Italian noblewoman. The direct granddaughter of Costanza Farnese, she was Duchess of Sora and married Giacomo Boncompagni, Marquess of Vignola, and Duke of Sora.
Lavinia Fontana, a prominent Bolognese artist, painted her portrait in 1594. A year later, Constanza served as the namesake and godmother of Fontana's daughter.