Ducal Palace of Urbino The palace, commissioned by the Duke of Urbino Federico da Montefeltro, was built in the course of the fifteenth century in successive phases. Among the many workers who were employed we remember the three architects who had the merit of making the building one of the most excellent palaces of the Renaissance period: the Florentine Maso di Bartolomeo, the Dalmatian Luciano Laurana and the Sienese Francesco di Giorgio Martini...Wikipedia...>>