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In page Corleone:

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During the reign of Frederick IV of Sicily, called The Simple, the city successfully rebelled against the crown but was recaptured in 1355. Corleone was besieged from Ventimiglia in 1358. During the reign of the four vicars, Corleone became the property of the powerful Chiaramonte family, but in 1391 was donated by Mary Queen of Sicily to Berardo Queralt, canon of Lerida, but he never took possession. Instead, it was occupied by Nicholas Peralta, vicar William's son, but King Martin the Younger returned it to the royal property, confirming its privileges in 1397 and giving it some tax relief.[citation needed]