The Venetian window has three parts: a central high round-arched opening, with two smaller rectangular openings to the sides, the latter topped by lintels and supported by columns. This is derived from the ancient Roman triumphal arch, and was first used outside Venice by Donato Bramante and later mentioned by Sebastiano Serlio (1475–1554) in his seven-volume architectural book "Tutte l'opere d'architettura et prospetiva" expounding the ideals of Vitruvius and Roman architecture. It can be used in series, but is often only used once in a facade, as at New Wardour Castle, or once at each end, as on the inner facade of Burlington House (true Palladian windows).