Niccolò Orsini

Niccolò 'Orsini' is the name of:

Nicholas Orsini, ruler of Cephalonia and Epirus
Nicola Orsini, Count of Nola, senator of Rome, gonfalonier of the church
Niccolò di Pitigliano, Italian condottiero and Captain-General of the Venetians
Niccolò Orsini (bishop), Roman Catholic bishop