Venetian window

Although Sebastiano Serlio (1475–1554) did not invent it, the window features largely in the work of the Italian architect Andrea Palladio (1508–1580) and is almost a trademark of his early career.

To describe its origin as being either Palladian or Venetian is not accurate; the motif was first used by Donato Bramante[2] and later mentioned by Serlio in his seven-volume architectural book Tutte l'opere d'architettura et prospetiva expounding the ideals of Vitruvius and Roman architecture, this arched window is flanked by two lower rectangular openings, a motif that first appeared in the triumphal arches of ancient Rome.

[3] According to James Lees-Milne, its first appearance in Britain was in the remodeled wings of Burlington House, London, where the immediate source was actually in Inigo Jones's designs for Whitehall Palace rather than drawn from Palladio himself.

Sir John Summerson suggests that the omission of the doubled columns may be allowed, but "the term "Palladian motif" should be confined" to cases where the larger order is present.

Burlington employed the motif in 1721 for an elevation of Tottenham Park in Savernake Forest for his brother-in-law Lord Bruce (since remodelled).

Venetian window at Holkham Hall in Norfolk, England, c. 1734-64