The Ducal Castle in Bisaccia is set on Monte Calvario, a mountain situated in the geographical region of Irpinia. It was built in the 8th century during the Lombard domination. The village of Bisaccia was first recorded in the 11th century, its lord was Riccardo, Baron of Bisaccia. The Lombards ruled over Bisaccia until they were defeated by the Normans in the 12th century.
The Ducal Castle was destroyed by the earthquakes of 1158 and rebuilt by Federico II in the 13th century. The village of Bisaccia became a feud of Isabella, wife of Federico D'Aragona. Subsequently, Bisaccia became property of Giovanni Manso, friend of the famous poet Torquato Tasso, who stayed at the castle in 1588.
Today it houses a museum, which hosts important archaeological finds of a huge necropolis discovered in a series of archaeological excavations. The works have brought to light a huge necropolis of the I and II Iron Age, that is 9th-7th century.
The grave of the Princess shows unique characteristics like its extremely precious funerary goods and refined jewels with stones and ceramics.