Italian painter. He was the younger brother of Guercino (Giovanni Francesco Barbieri), and both collaborated with him and worked independently as a still-life painter. He was a celebrated painter of still-life and animals. He chose for his subjects fruits, flowers, insects and animals, which he painted after nature with a lively tint of colour, great tenderness of pencil, and a strong character of truth and life. He particularly excelled in painting fish, which he represented with astonishing fidelity. Guercino's Libro dei conti, for which, from 1629, Barbieri was responsible, recorded 42 pictures by him, including the Spice Shop.
In 1642 Paolo Antonio moved to Bologna with Guercino, and seven more works are recorded in the account book in Bologna. The two brothers collaborated on Flora (1642) and on the Woman and Child with Fruit (both PalazzoGLOSSARYPalaces: large urban dwellings, 'palazzo' in Italian carries no regal connotations. Alberti described the palace as a city in little, and, like cities, Italian Renaissance palaces vary in type according to differences of climate, tradition and social structure. On to these regional stocks were grafted new architectural strains, reflecting theoretical reinterpretations of antiquity and individually influential examples. The atrium and peristyle house described by Vitruvius and now known from Pompeii did not survive antiquity, and much of the interest of Renaissance designs lies in creative misunderstandings of Vitruvius's text. Medieval palace architecture probably inherited the insula type of ancient apartment house, related to the modest strip dwellings which never disappeared from Italian cities. In Florence a merchant palace developed from fortified beginnings, with vaulted shop openings on the ground floor, and the main apartments above, reached by internal stone staircases opening from an inner court. Renaissance developments regularized without changing the essential type, although large cloister-like courtyards were introduced, while shops came to be thought undignified. At Michelozzo's Medici Palace (1444) a square arcaded courtyard with axial entrance lies behind a façade of graduated rustication, with biforate windows, a classical cornice replacing the traditional wooden overhang. The apartments on the 'piano nobile' formed interconnecting suites of rooms of diminishing size and increasing privacy. The classical orders which Alberti introduced to the façade of the Palazzo Rucellai (c.1453) were not taken up by the conservative Florentines, who continued to build variations on the Medici Palace (Palazzo Pitti; Palazzo Strozzi). In the 16th century rustication was reduced to quoins and voussoirs, and large windows appeared on the ground floor, 'kneeling' on elongated volutes. At Urbino the Ducal Palace (1465) reflected Alberti's recommendations for the princely palace, and was in turn influential on late 15th century palaces in Rome (e.g. the Cancelleria). A harmonious Florentine courtyard and ample staircase replace the embattled spaces of medieval seigneurial castles, of which vestiges remain only in the towers flanking the balconies of the duke's private apartments, designed as a scholarly retreat. In the absence of a merchant class or a cultured nobility in 15th century Rome, the architectural pace was set by the papal court. Papal incentives to build, and large households, meant less compact plans for cardinals' palaces, often built next to their titular churches. Renaissance forms appear in the unfinished courtyard of the Palazzo Venezia (1460s), with its arcade system derived from the nearby Theatre of Marcellus, and in the delicately ordered stonework of the Cancelleria (1485). In the 16th century vestigial corner towers and shops disappear from cardinals' palaces, and Antonio da Sangallo's Palazzo Farnese (1516) introduces symmetrical planning and Vitrivuan elements, like the colonnaded vestibule, behind a sober Florentine façade, enlivened by Michelangelo's cornice. A smaller palace type supplied the needs of an enlarged papal bureaucracy, more ambitious for display than for domestic accommodation. Bramante's 'House of Raphael' sets the façade style not only for this new type, but also for Renaissance houses all over Europe. Raphael and Peruzzi made ingenious use of difficult sites (Palazzo da Brescia; Palazzo Massimi), and their sophisticated façades flattered the architectural pretensions of patron and pope (e.g. Palazzo Branconio dell'Aquila). Movement of patrons and architects, especially after the Sack of Rome, meant a diffusion of Roman forms to central and northern Italy, where Sanmicheli's palaces in Verona, and Palladio's in Vicenza, adapted Roman types to suit local conditions. Palladio's 4-columned atrium is a Vitruvian solution to the traditionally wide Veneto entrance hall, and his plan for the Palazzo da Porto-Festa contains explicit references to Vitruvius's House of the Greeks. In Venice, defended by its lagoon and a stable political system, the hereditary aristocracy built palaces open to trade and festivity on the Grand Canal. The traditional Venetian palace has a tripartite structure: long central halls above entrance vestibules used for unloading merchandise are lit on the canal façade by clusters of glazed windows (rare elsewhere), and at the back from small courts with external staircases (as in the Ca' d'Oro). Codussi's palaces introduced biforate windows and a grid of classical orders into the system, while Sansovino's Palazzo Cornaro retains vestiges of the Venetian type (small courtyard; tripartite façade) despite its Bramantesque coupled orders and licentious window surrounds. Other cities, like Genoa, evolved influential types. Through engravings and the illustrated treatises, Italian Renaissance ideas of palace planning, originally evolved in response to specific conditions, came to be applied all over Europe. Rospigliosi-Pallavicini, Rome); the latter, in which the figures are by Guercino, was bought by Cardinal Mazarin in 1646. They also worked together on Ceres (Palazzo Doria-Pamphili, Rome), in which Paolo Antonio painted the floral decoration.
