Bernardo di Matteo del Borra Gamberelli (1409–1464), better known as Bernardo Rossellino, was an Italian Renaissance sculptor and architect, the elder brother of the sculptor Antonio Rossellino. As a member of the second generation of Renaissance artists, he helped to further define and popularize the revolution in artistic approach that characterized the new age. His work is often hard to distinguish from that of his brothers (three in all) working in the family workshop.

Biography Rossellino was born into a family of farmers and quarry owners in the mountain village of Settignano, Italy, overlooking the Arno Valley and the city of Florence.The following review of Bernardo Rossellino's life and career is largely based upon the Rossellino entries of Charles R. Mack in the St. James Press International Dictionary of Art and Artists, 1990, vol. I, 105, vol. II, 724–25; in the St. James Press International Dictionary of Architects and Architecture, 1993, vol. I, 749–52, vol. II, 549–551; in An Encyclopedia of the History of Classical Archaeology, 1996, 964 His uncle, Jacopo di Domenico di Luca del Borra Gamberelli may have given him his first lessons in stonemasonry. By 1420, Bernardo was certainly down in Florence and apprenticed to one of that city's better-known sculptors, perhaps Nanni di Bartolo, called "il Rosso (the redhead)". Such a relationship might explain the nickname of "Rossellino (the little redhead) given to Bernardo and applied to his brothers, Antonio, Domenico, and Giovanni. Curiously, there is no record of Bernardo's entry into Florence's Guild of Stone and Woodworkers, although matriculation information exists for his brothers.

Bernardo learned from the experimental atmosphere that suffused Florence in the 1420s. He seems to have been captivated by the "new wave" approaches being put into practice by Brunelleschi, Donatello, Ghiberti, and Masaccio. Bernardo Rossellino embraced and held true to the classical revival in both sculpture and architecture. Celebrated for his sculpture (the Leonardo Bruni Tomb, Empoli Annunciation group), he achieved particular distinction through his expanding role as an architect, achieving lasting fame for the work done or planned in Rome for Pope Nicholas V and, especially for the rebuilding of the town of Pienza for Pope Pius II. Part of his artistic importance also lay in his entrepreneurial skills which enabled him to assemble a large and successful workshop that dominated the stoneworking field in Florence during the 1450s and 1460s.

Arezzo, 1433 In 1433, Bernardo is recorded as being in Arezzo, employed by the Fraternita di Santa Maria della Misericordia to complete the facade of the Misericordia's headquarters. His first job presented a considerable challenge. The lower storey of this palace had been completed a half century earlier in the, then, popular Gothic style. Thus the problem confronting Bernardo was similar to that which Alberti encountered a quarter century later when asked to complete the facade of Santa Maria Novella. Bernardo's solution for the unfinished second storey was a three bay design which used a typically Gothic mixed-element frame in the central bay flanked by classical paired pilasters and aediculae, the features of which were taken from the most progressive sources available. Set within the Gothic frame of this second storey is a relief of the Madonna of Mercy, the protectress of Arezzo, spreading her mantle out over the community's citizenry. She is flanked by the kneeling saints Laurentius and Persentinus. Bernardo received his final payment for the project in June 1435, specifically for the two free standing figures of Saints Gregory and Donatus which occupy the aediculae on either side of the Misericordia relief. Rossellino's solution for the Arezzo palace facade fused Gothic and Renaissance elements in a deft, if somewhat awkward, combination aimed at achieving the Renaissance goal of unified harmony. He also clearly displayed, in this initial effort at both sculpture and architecture, a genius for the sort of creative eclecticism that became a major feature of the "Rossellino manner".

Return to Florence, from 1436 Bernardo Rossellino was back in Florence in 1436 to establish his own workshop and to join a crew of stonemasons already at work constructing the Aranci Cloister of the Badia. Payment records, supported by stylistic evidence, indicate that his principal contributions (1436–38) to this project included a handsome stone doorframe and an unusual cross window, both of which are identifiable today. It also is possible that he proposed the addition of the pilaster strips which divide the surfaces of the loggias of the two-storey courtyard into a systematic grid. Documents indicate that Bernardo assumed a more decisive role at the suburban monastery of Santa Maria alle Campora whose cloister (1436) challenges that of Michelozzo at San Marco as the first such structure to have been erected in accordance with a Renaissance aesthetic. In 1444, he received a commission to sculpt two altar figures for the oratory of the Annunciation in the church of St. Stephen in Empoli. In these two representations of the Virgin Annunciate and of the Archangel Gabriel, we find a further development of the artist's decoratively graceful and classical style as well as a recognition of the sculptural styles of Donatello, Ghiberti, and Michelozzo.

Although the primary merchandise of the Rossellino shop was the supply of building material and simple tasks of stonemasonry, there were several projects combining sculptural and architectural features that were of particular significance during the 1440s. One, undertaken in the Palazzo Pubblico of Siena, called upon Rossellino to design a grand entry way into the Sala del Concistoro.

Another project was the triumphal arch wall tomb erected in Florence's church of Santa Croce for the historian and humanist scholar Leonardo Bruni (died 1444), who had served as the State Chancellor of Florence. No documentation survives for the tomb, but two early 16th-century sources credit Bernardo Rossellino for the project and his authorship generally has been accepted. There, however, has been debate concerning the dating of the tomb, with some supporting a date in the late 1440s and others, believing that Bernardo could not have conceived its classical character prior to his stay in Rome, preferring a date after 1455. There is, however, nothing in its design that would preclude the earlier dating. In fact the Bruni Tomb seems a logical continuation of the classicizing manner which Bernardo recently had displayed in his design for the Concistoro door frame in Siena. Accordingly, the Bruni Tomb might best be dated to the years 1446–48.

Bernardo Rossellino's Bruni Tomb consisted of a shallow wall niche framed by pilasters and topped by a semi-circular arch. The effect suggests a triumphal arch leading to both the immortal fame desired by the humanist scholar and spiritual deliverance sought by the pious Christian. Bruni's sarcophagus is placed within the niche and it, in turn, supports a brocade-draped bier upon which rests Bernardo's portrait effigy of the statesman. A tondo containing the Madonna and Child flanked by half-length angels appears within the arch above the bier, while two large angelic putti, bearing Bruni's coat-of-arms ascend the archivolt. Bernardo drew upon a variety of sources in arriving at his design for the tomb, including 14th-century wall tombs in Rome done by members of the so-called Cosmati school, as well as the recently executed Tomb of Baldassare Coscia (Antipope John XXIII) by Donatello and the Brancacci tomb by Michelozzo. What sets the Bruni tomb apart and established it as the "standard" upon which so many subsequent later Renaissance tombs were based (including that for Carlo Marsuppini executed a few years later for Santa Croce by Bernardo's probable pupil, Desiderio da Settignano) was its sense of unity.

By any estimation, these two works (the Siena portal and the Bruni Tomb) stand out as highpoints in the evolution of the Renaissance style. Even before his trip to Rome in the 1450s and his contact with Alberti, Bernardo demonstrated a thorough appreciation for the nature of the antique revival that was so fundamental to the Renaissance movement. His understanding of the essential elements of antiquity is also apparent in the finest architectural achievement of Bernardo's early years, the Spinelli Cloister at Santa Croce in Florence (1448–51). No documents exist to connect Bernardo with this project but the entry portal is clearly a simplified version of his Siena door frame and his authorship of the Spinelli Cloister may be accepted. The rhythmic beauty of the cloister, perhaps the loveliest of the early Renaissance, is due to a carefully formulated series of mathematical ratios and Euclidean relationships that echo those employed by Brunelleschi at the Hospital of the Innocents. The crisply executed architectural sculptures of the Spinelli Cloister (doorframes, capitals and corbels, entry portal) are stylistic signatures of the "Rossellino manner" and are unique to his workshop. Bernardo's style is also to be found in the tabernacle he executed (1449–51) for the Florentine church of Santa Maria Nuova (since relocated to Sant'Egidio). In 1451, his shop received an important sculptural commission for a tomb for the Beata Villana in Santa Maria Novella (now dismembered and in fragmentary state). Its execution was left in the hands of Bernardo's brother, Antonio and other members of the workshop (including Desiderio da Settignano) due to Bernardo's departure for Rome.

During these same years, Bernardo was employed by the wealthy banker Giovanni Rucellai to remodel several old dwellings into a new family palace. This initial work for Rucellai involved internal systemization, the construction of a cross-vaulted passage leading from the street (the Via della Vigna nuova) to a new courtyard and loggia for which he also was responsible. Evidence of Bernardo's presence may found in one of the corbels in this corridor which is identical to those used in the Spinelli Cloister and was a probable "leftover" from that project.

Rome, 1451–55 Bernardo's career took an important turn when he traveled to Rome in 1451 to join the vast architectural team then engaged by Pope Nicholas V to revitalize the ancient city and its environs. Giorgio Vasari's mid-sixteenth century biography of the artist greatly exaggerated Bernardo's actual role in most of the projects. Although his retainer exceeded that of all other stonemasons in the papal employ, he is documented at only two projects: as furnishing hoists for the large round tower at the Vatican Palace and in doing restoration work at the early Christian church of San Stefano Rotondo (window and door frames, vaulting, stone paving).Charles R. Mack,"Bernardo Rossellino, L.B. Alberti and the Rome of Pope Nicholas V," Southeastern College Art Conference Review, X, 2, 1982, 60–69 His primary task in Rome, apparently, was to draw up plans, likely under the supervision of Alberti, for rebuilding the Vatican and the Basilica of St. Peter's, projects which, due to the death of the pope in 1455, were never carried out. In spite of this, Bernardo's long sojourn in Rome had significant meaning for him, solidifying his commitment to reviving the spirit of antiquity in his works and exposing him to the concepts of Alberti.