Diocletian windows, also called thermal windows, are large semicircular windows characteristic of the enormous public baths ( thermae ) of Ancient Rome. They have been revived on a limited basis by some classical revivalist architects in more modern times.
Diocletian windows are large segmental arched windows (or other openings), which are usually divided into three lights (window compartments) by two vertical mullions. The central compartment is often wider than the two side lights on either side of it. [1]
Diocletian windows are named after the windows found in the Baths of Diocletian (AD 302) in Rome. (The Thermae is now the church of Santa Maria degli Angeli e dei Martiri.) The variant name, thermal window, also comes from their association with the Thermae of Diocletian.
This type of window was revived and used in Italy in the 16th century, especially by Andrea Palladio. Palladio and others incorporated an elongated Diocletian window in the form of an arched central light flanked by narrower, square-headed apertures. This combination became known as a Venetian window.
The Diocletian window was much used in the early 18th century by the English architect Richard Boyle, [2] one of the originators of the English Palladian style, and by his followers.
Diocletian windows continued to be used occasionally in large public buildings in the various devolutions of neoclassical architecture including the Beaux Arts movement (1880–1920).
In ancient Rome, thermae and balneae were facilities for bathing. Thermae usually refers to the large imperial bath complexes, while balneae were smaller-scale facilities, public or private, that existed in great numbers throughout Rome.
The Baths of Caracalla in Rome, Italy, were the city's second largest Roman public baths, or thermae, likely built between AD 212 and 216/217, during the reigns of emperors Septimius Severus and Caracalla. They were in operation until the 530s and then fell into disuse and ruin.
Andrea Palladio was an Italian Renaissance architect active in the Venetian Republic. Palladio, influenced by Roman and Greek architecture, primarily Vitruvius, is widely considered to be one of the most influential individuals in the history of architecture. While he designed churches and palaces, he was best known for country houses and villas. His teachings, summarized in the architectural treatise, The Four Books of Architecture, gained him wide recognition.
Palladian architecture is a European architectural style derived from and inspired by the designs of the Venetian architect Andrea Palladio (1508–1580). What is recognised as Palladian architecture today is an evolution of his original concepts. Palladio's work was strongly based on the symmetry, perspective, and values of the formal classical temple architecture of the Ancient Greeks and Romans. From the 17th century Palladio's interpretation of this classical architecture was adapted as the style known as "Palladianism". It continued to develop until the end of the 18th century.
The following outline is provided as an overview of and topical guide to classical architecture:
Giacomo Leoni, also known as James Leoni, was an Italian architect, born in Venice. He was a devotee of the work of Florentine Renaissance architect Leon Battista Alberti, who had also been an inspiration for Andrea Palladio. Leoni thus served as a prominent exponent of Palladianism in English architecture, beginning in earnest around 1720. Also loosely referred to as Georgian, this style is rooted in Italian Renaissance architecture.
The Baths of Diocletian were public baths in ancient Rome, in what is now Italy. Named after emperor Diocletian and built from 298 AD to 306 AD, they were the largest of the imperial baths. The project was originally commissioned by Maximian upon his return to Rome in the autumn of 298 and was continued after his and Diocletian's abdication under Constantius, father of Constantine.
Villa Emo is one of the many creations conceived by Italian Renaissance architect Andrea Palladio. It is a patrician villa located in the Veneto region of northern Italy, near the village of Fanzolo di Vedelago, in the Province of Treviso. The patron of this villa was Leonardo Emo and remained in the hands of the Emo family until it was sold in 2004. Since 1996, it has been conserved as part of the World Heritage Site "City of Vicenza and the Palladian Villas of the Veneto".
A Venetian window is a large tripartite window which is a key element in Palladian architecture. Although he did not invent it, it features largely in the work of the Italian architect Andrea Palladio (1508–1580) and is almost a trademark of his early career. The true Palladian window is an elaborated version.
I quattro libri dell'architettura is a treatise on architecture by the architect Andrea Palladio (1508–1580), written in Italian. It was first published in four volumes in 1570 in Venice, illustrated with woodcuts after the author's own drawings. It has been reprinted and translated many times, often in single-volume format.
The Baths of Titus or Thermae Titi were public baths (Thermae) built in 81 AD at Rome, by Roman emperor Titus. The baths sat at the base of the Esquiline Hill, an area of parkland and luxury estates which had been taken over by Nero for his Golden House or Domus Aurea. Titus' baths were built in haste, possibly by converting an existing or partly built bathing complex belonging to the reviled Domus Aurea. They were not particularly extensive, and the much larger Baths of Trajan were built immediately adjacent to them at the start of the next century.
Villa Barbaro, also known as the Villa di Maser, is a large villa at Maser in the Veneto region of northern Italy. It was designed and built by the Italian Renaissance architect Andrea Palladio, with frescos by Paolo Veronese and sculptures by Alessandro Vittoria, for Daniele Barbaro, Patriarch of Aquileia and ambassador to Queen Elizabeth I of England and his brother Marcantonio, an ambassador to King Charles IX of France. The villa was added to the list of World Heritage Sites by UNESCO in 1996.
Villa Pojana or Poiana, is a patrician villa in Pojana Maggiore, a town of the Province of Vicenza in the Veneto region of Italy. It was designed by the Italian Renaissance architect Andrea Palladio. It is conserved as part of the UNESCO World Heritage Site "City of Vicenza and the Palladian Villas of the Veneto".
Italy has a very broad and diverse architectural style, which cannot be simply classified by period or region, due to Italy's division into various small states until 1861. This has created a highly diverse and eclectic range in architectural designs. Italy is known for its considerable architectural achievements, such as the construction of aqueducts, temples and similar structures during ancient Rome, the founding of the Renaissance architectural movement in the late-14th to 16th century, and being the homeland of Palladianism, a style of construction which inspired movements such as that of Neoclassical architecture, and influenced the designs which noblemen built their country houses all over the world, notably in the United Kingdom, Australia and the United States of America during the late-17th to early 20th centuries.
The Villa Pisani is a patrician villa designed by Italian Renaissance architect Andrea Palladio, located in Bagnolo, a hamlet in the comune of Lonigo in the Veneto region of Italy.
The Villa Forni Cerato is a 16th-century villa in Montecchio Precalcino, Province of Vicenza, northern Italy. Its design is attributed to Andrea Palladio and his client is assumed to have been Girolamo Forni, a wealthy wood merchant who supplied building material for a number of the Palladio's projects. The attribution to Palladio is partly based on stylistic grounds, although the building departs from the Palladian norms.
Villa Thiene is a 16th-century villa at Quinto Vicentino in the province of Vicenza. The building as it stands today is the work of several architects one of whom was Andrea Palladio. Like several other projects on which Palladio worked, it was commissioned by two brothers, in this case Marcantonio and Adriano Thiene. Since 1996, the villa has been conserved as part of a World Heritage Site, the "City of Vicenza and the Palladian Villas of the Veneto". The World Heritage Site also includes the Palazzo Thiene in the city of Vicenza, which belonged to same Thiene brothers.
Venetian Renaissance architecture began rather later than in Florence, not really before the 1480s, and throughout the period mostly relied on architects imported from elsewhere in Italy. The city was very rich during the period, and prone to fires, so there was a large amount of building going on most of the time, and at least the facades of Venetian buildings were often particularly luxuriantly ornamented.
Chiswick House is an example of English Palladian Architecture in Burlington Lane, Chiswick, in the London Borough of Hounslow in England. Arguably the finest remaining example of Neo-Palladian architecture in London, the house was designed by Lord Burlington, and built between 1727 and 1729. The architectural historian Richard Hewlings has established that Chiswick House was an attempt by Lord Burlington to create a Roman villa, rather than Renaissance pastiche, situated in a symbolic Roman garden. Chiswick House is inspired in part by several buildings of the 16th-century Italian architects Andrea Palladio (1508–1580) and his assistant Vincenzo Scamozzi (1552–1616). The house is often said to be directly inspired by Palladio's Villa Capra "La Rotonda" near Vicenza, due to the fact that architect Colen Campbell had offered Lord Burlington a design for a villa very closely based on the Villa Capra for his use at Chiswick. However, although still clearly influential, Lord Burlington had rejected this design and it was subsequently used at Mereworth Castle, Kent. Lord Burlington was not just restricted to the influence of Andrea Palladio as his library list at Chiswick indicates. He owned books by influential Italian Renaissance architects such as Sebastiano Serlio and Leon Battista Alberti and his library contained books by French architects, sculptors, illustrators and architectural theorists such as Jean Cotelle, Philibert de l'Orme, Abraham Bosse, Jean Bullant, Salomon de Caus, Roland Fréart de Chambray, Hugues Sambin, Antoine Desgodetz, and John James's translation of Claude Perrault's Treatise of the Five Orders. Whether Palladio's work inspired Chiswick or not, the Renaissance architect exerted an important influence on Lord Burlington through his plans and reconstructions of lost Roman buildings; many of these unpublished and little known, were purchased by Burlington on his second Grand Tour and housed in cabinets and tables the Blue Velvet Room, which served as his study. These reconstructions were the source for many of the varied geometric shapes within Burlington's Villa, including the use of the octagon, circle and rectangle. Possibly the most influential building reconstructed by Palladio and used at Chiswick was the monumental Roman Baths of Diocletian: references to this building can be found in the Domed Hall, Gallery, Library and Link rooms.