1600-1669 17thcentury architects architecture artandstate artpatronageclement baroque belltowers bernini biography bozzetto buildings cataloguesraisonnésbernini criticismandinterpretation criticismandinterpretationbernini designandconstruction etc gianlorenzo history italy künstlerischesmaterial models(clay plaster rome sculpture structures theaterinart tonmodell tonplastik tuscany vaticancity werkstoff