Palazzo Barberini houses the Galleria Nazionale d'Arte Antica. The sloping site had formerly been occupied by a garden-vineyard of the Sforza family, in which a palazzetto had been built in 1549. The sloping site passed from one cardinal to another during the sixteenth century, with no project fully getting off the ground. When Cardinal Alessandro Sforza met financial hardships, the still semi-urban site was purchased in 1625 by Maffeo Barberini, of the Barberini family, who became Pope Urban VIII. Three great architects worked to create the Palazzo, each contributing his own style and character to the building.