The 16th century palazzo has been inhabited by the Bacile di Castiglione family for nearly five centuries. Originally it was a castle which at a later date was transformed into a habitation.
The old fortifications, of medieval origins, were incorporated into the palazzo and it became a residential home by the beginning of the 17th century.
A second floor was built in the second half of the 19th century by Baron Filippo Bacile di Castiglione who needed to accommodate his 14 children.
Filippo later constructed the local railway line which today still connects Spongano with Lecce.
Until 1999 the palazzo was inhabited by Baron Fabio Bacile di Castiglione, the son of Giovanni, one of Filippo's 14 children.
Now Fabio's 6 children live at Spongano mainly during the summer months and his eldest grandson lives there, with his family, all year round.