Bolognetta is a comune (municipality) in the Province o Palermo in the Italian region Sicily, locatit aboot 20 kilometre (12 mi) southeast of Palermo. As o 31 December 2004, it haed a population o 3,632 an a aurie o 27.6 square kilometre (10.7 sq mi). In the 17t hunderyear Bolognetta wis a fief o the Mancini faimily wi the name o Ogliastro.