Francesco I Sforza
In 1448 Seraphina married Alessandro Sforza, Lord of Pesaro. Some time after, her husband left to support his brother Francesco I Sforza as Duke of Milan. During his six-year absence, Seraphina was entrusted with governing Pesaro. Upon his return, her husband gave himself up to a dissolute life, and ill-treated her. He forced her to enter the convent of Poor Clares at Pesaro.