Student Proposal

3-Dimensional Construction of Giuliano da Sangallo's Plan for New St. Peter's Under Julius II

Originally erected as a funerary church for the Great Apostle Cephas, the ìRockî upon whom Christ would build his church, the Basilica of St. Peter's in Rome became an increasingly significant site especially during the Middle Ages. Indeed, multitudes of Europeans making pilgrimages were drawn to St. Peter's, as it housed one of the most venerated reliquaries in all of Europe. It was not until the Quattrocento that the monumentality of St. Peter's in the consciousess of the Western World became evident in a large-scale renovation of the old Constantinian basilica. Initiated by Pope Nicholas V, alterations were planned in order to transform Rome into a modern seat of the papacy. Nicholas V, however, never saw his vision for St. Peter's realized. Instead the dream was bequeathed to his successor Julius II, who thought of himself as the new Solomon, patron of the modern Temple through which the grandeur of both Christendom and the imperial age could be manifested. Julius II was prepared to outdo his Old Testament example and found for the design of his project two potential architects, Donato Bramante (1444-1514) and Giuliano da Sangallo (1445-1516). Ultimately, it is Bramante who was to become the papal architect and receive the great commission.

Why was Bramante's plan for St. Peter's chosen over Sangallo's? How were the ideas not only of Julius II, but more importantly of the Renaissance translated differently into each of the architects' plans? Within a broader scope, what role does the visual model perform in the Concorso for a particular commission and to what extent does the patron-architect relationship influence the intricate execution of such a project as that of New St. Peter's? To facilitate my inquiry, I will consult the sources included in but not limited to the attached bibliography to develop the context in which this extraordinary project was conducted. Afterwards, I will be analyzing especially closely the architectural drawings of Giuliano da Sangallo for St. Peter's. From his plans, I will endeavor to construct a 3-dimensional model via AutoCAD. In the process, I hope to elucidate the problems with rendering the 2-dimensional into a more plastic image, thereby stressing the importance of responsible interpretations of the architect's original designs. Thus, my approach can be delineated in three stages: 1) thorough readings of pertinent texts; 2) examination of Sangallo's drawings; and 3) construction of a hypothetical model thereof. Ascertaining the questions under investigation will be enhanced by the juxtaposition of Bramante's wooden model with my own 3-dimensional interpretation of Sangallo's design.

I am interested in further exploration of the capabilities of the computer as a powerful yet versatile tool for the reconstruction of such grand edifices as those of the Renaissance. This project would require me to devote much attention to the computer's function in creating 3-dimensional simulations of buildings for which only flat, 2-dimensional drawings are currently extant. This pursuit is extremely important and enlightening, as it forces one to pose questions, while looking at drawings in such a way that otherwise would be neglected. A good instance of this is the discovery that a structure which appears fine on paper, proves unrealizable in the third dimension as a result of 3-D modeling analysis.

The entirety of my research project will contribute directly to my faculty sponsor's own research program. Specializing in Italian Renaissance architecture, she has been focusing recently on the architecture of Giuliano da Sangallo, including both secular and religious structures.

The 10-week schedule would be divided up according to the following scheme:
2.5 weeks of reading texts
1 week of studying Giuliano da Sangallo's drawings, making sketches, calculating dimensions, etc.

The remainder of the time will be spent working with the AutoCAD program constructing the 3-D model, drawing conclusions and writing the paper. Here it is particularly difficult to determine exactly the amount of time needed in constructing such a complex model. The temporal frame-work will depend mostly upon the level of detail I wish to obtain, e.g. the representation of Corinthian capitals. Embellishments can be added later or left out altogether, so as to meet the deadline. However, I am most eager to spend time beyond the 10 weeks, perfecting the final model.

Benedettis, Sandro. ìIl Modello per il San Pietro Vaticano di Antonio da Sangallo il Giovane.î Antonio da Sangallo il Giovane 1986. 157-174.

Borsi, Stefano. Giuliano da Sangallo. I disegni di architettura e dell'antico. Rome, 1985.

Bruschi, Arnaldo. ìPlans for the Dome of St. Peter's from Bramante to Antonio da Sangallo the Younger.î Domes from Antiquity to the Present. Proceedings of The IASS-MSU International Symposium (Mimar Sian Üniversitesi), Istanbul, 237-243.

______. ìProblemi del San Pietro bramantesco.î Quaderni dell'isituto di storia dell' architettura I/X (1983): 273-292.

Fagiolo, Marcello. ìLa Basilica Vaticana come tempio mausoleo ëinter duas metas', le idée e I progetti di Alberti, Filarete, Bramante, Peruzzi, Sangallo, Michelangelo.î Antonio da Sangallo il Giovane 1986. 187-210.

Frommel, Christoph L. ìIl cantiere di S. Pietro prima di Michelangeo,î in Les chantiers de la Renaissance, Actes des colloques (Tour 1983-83), sous la direction de Jean Guillaume, Paris. 175-183.

_____. ìSan Pietro. Storia della sua costruzione.î Raffaello Architetto. 1984. 241-310.

_____. ìPapal Policy. The Planning of Rome during the Renaissance.î Le città capitali. 1985. 95-110.

Hubert, H. ìBramante, Peruzzi, Srlio und die Peterskuppel.î Zeitschrift für Kunstgeschichte LV (1993): 353-371.

_____. ìBramantes St. Peter-Entwürfe und die Stellung des Apostelgrabes.î Zeitschrift für Kunstgeschichte LI: 195-211.

Krauss, Franz. ìBramantes Entwürf für die Kuppel von St. Peter.î Römisches Jahrbuch der Biblioteca Hertziana XXVII/XXVIII: 183-200.

Metternich, Wolf. Bramante und St. Peter. München: Fink, 1975.

Paluzzi, Galassi. La Basilica di San Pietro. Bologna: Cappelli, 1975.

Saalmann, Howard. ìDie Planung Neu St. Peters. Kritische Bemerkungen zum Stand der Forschung.î Münchner Jahrbuch der bildenden Kunst XL: 102-140.

Theones, Christof. ìPianta centrale e piñata longitudinale nel nuovo San Pietro.î L'église dans l'architetutre de la Renaissance XVIII e colloque d'histoire de l'architecture (Centre d'études superieurs de la Renaissance-Tours 1990).

_____. ì Vitruv, Alberti, Sangallo. Zur Theorie der Architekturzeichnung in der Renaissanceî Hülle und Fülle. 1993.

_____. ìAlt#und Neu St. Peter unter einem Dachî Architektur und Kunst im Abendland. 1992.

_____. ìI tre progetti di Bramante per S. Pietroî Quaderni dell'Istituto di storia dell' architettura n.s. 15/20: 439-446.

ìZur Frage des MaBstabs in Architekturzeichnungen der Renaissanceî Studien zur Künstlerzeichnung. Stuttgart: 38-56.

Faculty Letter of Support