Antonio II da Montefeltro
Born at Urbino, he was a grandson to count Nolfo da Montefeltro and the son to Federico II da Montefeltro. He occupied Urbino in 1375 and also owned Cagli. After the Gabrielli of Gubbio plotted against him, though in vain, he obtained the lordship of that city, being confirmed as its Papal vicar by Benedict IX.
In 1391, while warring against the Malatesta, Antonio took the castle of Sassoferrato and Cantiano. He had his son Guidantonio married with Ringarda Malatesta and her daughter Gentile to the lord of Faenza. He died in 1404, after fleeing Urbino during a plague.
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