The Synagogue was built in 1407 or 1492; the date of building varies with several sources. The original building was rebuilt in 1570, by the Italian architect Mateo Gucci. The rebuilding included the attic wall with loopholes, windows placed far above ground level, and thick, masonry walls with heavy buttressing to withstand siege, all features borrowed from military architecture.
A synagogue was constructed at some point between 1407 and 1492; the exact date is uncertain due to conflicting sources. The initial structure was renovated in 1570 by Italian architect Mateo Gucci, featuring elevated walls with openings, high windows, and robust fortifications to withstand siege, all characteristics commonly found in military architecture.