F. A. Lehner. Fürstlich Hohenzollern'sches Museum zu Sigmaringen: Verzeichniss der Gemälde. Sigmaringen, 1871, p. 61, no. 200, as Sienese school, 14th century.
F. A. von Lehner. Fürstlich Hohenzollern'sches Museum zu Sigmaringen: Verzeichniss der Gemälde. 2nd ed. Sigmaringen, 1883, no. 200.
Osvald Sirén. "A Picture of S. Ursula." Burlington Magazine 39 (October 1921), pp. 168–70, ill., attributes this painting to Guariento.
B[ryson]. B[urroughs]. "A Picture of Saint Ursula." Metropolitan Museum of Art Bulletin 18 (June 1923), pp. 144–45, ill., calls it Venetian, dates it about 1400, and observes that it may be the work of Niccolò di Pietro or a painter close to him as Lionello Venturi had suggested.
Osvald Sirén. Letter to Bryson Burroughs. June 2, 1923, changes his attribution of the picture to Niccolò di Pietro and dates it about 1400 or shortly before.
Raimond van Marle. "Local Schools of North Italy of the 14th Century." The Development of the Italian Schools of Painting. 4, The Hague, 1924, p. 118 n. 1, calls it Venetian and regards it is as considerably later than Guariento.
Raimond van Marle. "Late Gothic Painting in North Italy." The Development of the Italian Schools of Painting. 7, The Hague, 1926, pp. 335–37, ill., calls it Venetian, about 1400; sees the influence of Guariento and tentatively suggests an attribution to Francesco del Fiore, noting the Gothic treatment of Saint Ursula's costume and features.
Luigi Coletti. "Studi sulla pittura del Trecento a Padova." Rivista d'arte 12 (1930), pp. 330, 360, calls it a Rhenish work of the 15th century.
Evelyn Sandberg-Vavalà. "Maestro Stefano und Niccolò di Pietro." Jahrbuch der Preuszischen Kunstsammlungen 51 (1930), pp. 107–9, fig. 15, attributes it to Niccolò di Pietro in his latest period, comparing it to his painting of St. Lawrence (Accademia, Venice).
Lionello Venturi. "Romanesque and Gothic." Italian Paintings in America. 1, New York, 1933, unpaginated, pl. 126, attributes it to Niccolò di Pietro.
Evelyn Sandberg Vavalà. "Niccolò di Pietro Veneziano." Art Quarterly 2 (Autumn 1939), pp. 287–89, 292 n. 4, ill., groups it with other late works by Niccolò di Pietro in which she sees the influence of Gentile da Fabriano's 1409 visit to Venice.
Harry B. Wehle. The Metropolitan Museum of Art: A Catalogue of Italian, Spanish, and Byzantine Paintings. New York, 1940, pp. 169–70, ill., as the work of an unknown Venetian painter, early 15th century, but suggests that it might also be Bolognese.
Roberto Longhi. Viatico per cinque secoli di pittura veneziana. Florence, 1946, p. 48, compares it with Niccolò di Pietro's Crucifix of 1404 in Verucchio, dating it to the first years of the 15th century.
Luigi Coletti. "Il maestro degli innocenti." Arte veneta 2 (1948), pp. 39–40, hesitantly accepts the attribution to Niccolò di Pietro, and suggests it is an early rather than late work.
Pietro Toesca. Il Trecento. Turin, 1951, 714 n. 240, attributes it to Niccolò di Pietro.
Giuseppe Fiocco. "Niccolò di Pietro, Pisanello, Venceslao." Bollettino d'arte 37 (January–March 1952), pp. 13, 18, attributes it to Niccolò di Pietro.
Luigi Coletti. Pittura veneta del Quattrocento. Novara, 1953, p. VII, pl. 4, accepts the attribution to Niccolò, calling it his masterpiece and suggesting a date in his late period.
Oreste Ferrari. "Un'opera di Niccolò di Pietro." Commentari 4 (July–September 1953), p. 230 n. 11, attributes it to Niccolò di Pietro and dates it in the first decade of the 15th century.
Stefano Bottari. "Il rinascimento (Parte I): l'arte del Quattrocento." Storia dell'arte italiana. 2, Milan, 1956, p. 201, fig. 268, calls it the artist's masterpiece.
Rodolfo Pallucchini. "Nuove proposte per Niccolò di Pietro." Arte veneta 10 (1956), p. 47, attributes it to Niccolò di Pietro.
Bernard Berenson. Italian Pictures of the Renaissance: Venetian School. London, 1957, vol. 1, p. 122, lists it as Niccolò di Pietro.
V. N. Lazarev. The Origins of the Italian Renaissance. 2, Russian ed. Moscow, 1959, vol. 2, p. 244, attributes it to Niccolò di Pietro.
Carl Huter. Letter to Elizabeth Gardner. November 4, 1964, rejects an attribution to Niccolò di Pietro.
Brigitte Klesse. Seidenstoffe in der italienischen Malerei des 14. Jahrhunderts. Bern, 1967, p. 317, no. 240, dates the painting at the beginning of the 15th century based on the types of textile worn by Saint Ursula; reproduces a sketch of the pattern of the robe.
Burton B. Fredericksen and Federico Zeri. Census of Pre-Nineteenth-Century Italian Paintings in North American Public Collections. Cambridge, Mass., 1972, pp. 150, 453, 606.
Federico Zeri with the assistance of Elizabeth E. Gardner. Italian Paintings: A Catalogue of the Collection of The Metropolitan Museum of Art, Venetian School. New York, 1973, p. 45, pl. 50, give it to Niccolò di Pietro, calling it one of his finest achievements, and date it in the first years of the fifteenth century.
George Kaftal with the collaboration of Fabio Bisogni. Iconography of the Saints in the Painting of North East Italy. Florence, 1978, cols. 1011–13, no. 305g, fig. 1299, attribute it to Niccolò di Pietro.
Denys Sutton. "Robert Langton Douglas, Part IV, XVIII: A Fresh Start." Apollo 110 (July 1979), p. 13, fig. 28.
Keith Christiansen. Gentile da Fabriano. Ithaca, N.Y., 1982, pp. 12, 69 n. 14, lists it with a group of works by Niccolò that are "Post-1410, showing the impact of Michelino and a consequent study of the Bohemian traits of Lorenzo Veneziano".
Keith Christiansen in La pittura in Italia: il Quattrocento. revised and expanded ed. [Milan], 1987, vol. 1, p. 130.
Andrea De Marchi. Gentile da Fabriano: Un viaggio nella pittura italiana alla fine del gotico. Milan, 1992, pp. 60, 92 n. 79, pp. 104, 109–10 n. 57, figs. 39 (overall), 59a, 59c (details).
Cathleen Hoeniger in La pittura nel Veneto: Il Trecento. Milan, 1992, p. 456, dates it about 1400–05.
Maria Cristina Chiusa in The Dictionary of Art. 23, New York, 1996, p. 94, dates it about 1410–25, calling it the artist's most important painting.
Andrea Di Lorenzo in Gentile da Fabriano and the Other Renaissance. Exh. cat., Spedale di Santa Maria del Buon Gesù, Fabriano. Milan, 2006, p. 154 [Italian ed., "Gentile da Fabriano e l'altro Rinascimento"].