Vitelli was summarily put to death while Oliverotto was spared due to the intervention of the government of Fermo.
Suspecting no foul play from his nephew, Fogliani brought the citizens of Fermo and lodged him in his own mansion.
As Machiavelli put it: When the food and all the other entertainments that are usual in such banquets were finished, Oliverotto, with cunning, began certain grave discourses, speaking of the greatness of Pope Alexander and his son Cesare, and of their enterprises, to which discourse Giovanni and others answered; but he rose at once, saying that such matters ought to be discussed in a more private place, and he betook himself to a chamber, whither Giovanni and the rest of the citizens went in after him.
But this didn't change Borgia's secret design, and the Duke had him captured and strangled, together with Vitellozzo Vitelli, on 31 December 1502.
[3][4] Oliverotto was succeeded as ruler by his son Ludovico, who ruled until he was killed at the Battle of Monto Giorgio in 1520 when Fermo became again directly subjected to the Holy See.