The Alidosi or Alodosi are a family of Romagna, Italy, who held the signoria of the city of Imola during the Late Middle Ages.
The family would rule the city until 1424, when it would be stripped from them by Filippo Maria Visconti, forcing them to retreat to the countryside seigniory of Castel del Rio, in the Romagna Apennines.
[2][3] Several member of the Alidosi family were employed by the Grand Duke of Tuscany which put them at odds with the Papal States and the Roman Inquisition.
This resulted in a lengthy trial which saw the Grand Duke clash with the prosecuting efforts of the Inquisition.
Another notable member was Cardinal Francesco Alidosi (1455–1511), who was a friend of Pope Julius II.