Prince of Foxes

The name of this movie is Prince of Foxes released in 1949-11-11 and it's main theme is In 1500, Duke Cesare Borgia hopes to marry his sister widowed by poison to the heir apparent of Ferrara, which impedes his conquest of central Italy. On this delicate mission he sends Andrea Orsini, his sister's lover and nearly as unscrupulous as himself. En route, Orsini meets Camilla Verano, wife of the count of Citta' del Monte Borgia's next intended conquest; and sentiment threatens to turn him against his deadly master, whom no one betrays twice....