Henri Leman. La collection Foulc: Objets d'art du moyen age et de la renaissance. Paris, 1927, vol. 1, n.p., no. 1; vol. 2, pl. 1, as "The Last Judgment," School of Valencia, about 1400.
[August L. ] M[ayer]. and [Otto] v[on]. F[alke]. "The Collection Foulc." Pantheon (October 1928), pp. 76, 492, ill. p. 496, attributes it to the Valencian school, which is "clearly proven" by the spelling of the Saints' names, and dates it to the early 15th century; notes that it was formerly considered Italian, and shows French and Catalan influences; based on the escutcheon, suggests it may have originated in the border-district of Lérida.
Chandler Rathfon Post. "The Hispano-Flemish Style in Northwestern Spain." A History of Spanish Painting. 4, Cambridge, Mass., 1933, part 2, pp. 594, 596–99, fig. 242, calls it a retable of St. Michael and All Saints, dated about 1420; compares it to the MMA Saint Giles retable [76.10], but attributes it to an unknown artist, perhaps a follower of Pere Nicolau and Marzal de Sas, though "possessing a style largely his own"; stresses the unusual iconographic interest over the "average grade" of its artistic quality; believes this retable was executed for the cathedral of Valencia since it portrays several saints with cults in Valencia; observes that it "resembles in certain ways the last gasp of Florentine Giottesque painting at the end of the Trecento, particularly in the harsh and garish color"; calls the right uppermost scene of the Annunciation "one of the spots where the artist has risen above his ordinary abilities".
Erwin Panofsky. Letter to Margaretta Salinger. September 12, 1939, confirms the theme of this altarpiece as all saints worshipping the trinity; sees the strong influence of very early Flemish style, about 1400, particularly in the peacock feathers of Saint Michael.
Margaretta Salinger. "A Valencian Retable." Metropolitan Museum of Art Bulletin 34 (November 1939), pp. 250–54, ill. (overall and detail), notes that on stylistic grounds it appears to be Valencian, from about 1420, but that its origin cannot be definitively established; comments that the lozenge on either side of the Trinity panel indicates the heraldic arms of an unmarried or widowed woman, probably a member of the Cervellon family of Catalonia; finds a distinct German element in rows of prophets and the Crucifixion; identifies the iconography as a depiction of the Trinity Adored by All Saints, noting that in the All Saints scenes represented in 15th-century manuscripts of St. Augustine's De civitate Dei, "a special place of honor at the right hand of God is reserved as in our painting for the Virgin".
barón de San Petrillo. Letter to Margaretta Salinger. October 4, 1939, is certain that the retable is not from the Cathedral of Valencia and reports that Saralegui thinks it may originate from Majorca; identifies the coat of arms as belonging to the Cervellon family.
Chandler R. Post. Letter to Margaretta Salinger. March 29, 1940, relates that a letter from Leandro de Saralegui traces this altarpiece to a chapel in the cloister of the now ruined monastery of Valdecristo in the region of Segorbe, under the patronage of the Counts of Cervellon.
Harry B. Wehle. The Metropolitan Museum of Art: A Catalogue of Italian, Spanish, and Byzantine Paintings. New York, 1940, pp. 212–14, ill. (detail), dates it about 1420 and observes that it has many of the German characteristics typical of early 15th-century art in Valencia.
Manuel Trens. María: Iconografía de la virgen en el arte español. Madrid, , p. 304, fig. 188, interprets its subject as a type of the Virgin of the Rosary.
Erwin Panofsky. Early Netherlandish Painting: Its Origins and Character. Cambridge, Mass., 1953, vol. 1, pp. 213, 445 n. 2 to p. 214, dates it about 1420; mentions it among altarpieces that depict The Adoration of the Trinity and observes that the vacant space opposite the Virgin Mary (on God's left) is standard in 15th-century City of God manuscripts.
Joaquín Yarza Luaces in La pittura spagnola. Milan, 1995, vol. 1, p. 123, fig. 141, finds it closer to the Catalan than to the Valencian school, and tentatively attributes it to Ramón de Mur.
Fernando Benito Doménech and José Gómez Frechina. El retaule de sant Miquel Arcàngel del Convent de la Puritat de València: Una obra mestra del gòtic internacional. Valencia, 2006, p. 40, fig. 18 (detail), dates it about 1400 and states that it originally came from the Carthusian monastery of Valdecristo in Altura, Spain.
Matilde Miguel Juan. Retablos, prestigio y dinero: talleres y mercado de pintura en la Valencia del gótico internacional. Valencia, 2008, p. 63, fig. 9.