Enrica Neri Lusanna. "Percorso di Guiduccio Palmerucci." Paragone 28 (March 1977), pp. 18, 34 n. 25, pl. 9, as in a private collection, Italy; as a fragment of a polyptych, known to the author from a photograph at the Fondazione Longhi, where it had been attributed to Palmeruccio by Longhi; concurs with this attribution and tentatively identifies the figure as Saint Romuald; notes its similarity to the figure of Saint Anthony Abbot in a polyptych of the Madonna and Child with saints (private collection, Parma; formerly Lanckoronski collection).
Keith Christiansen in The Jack and Belle Linsky Collection in The Metropolitan Museum of Art. New York, 1984, pp. 20–21, no. 1, ill. (color), accepts Neri Lusanna's [see Ref. 1977] identification of the figure as Saint Romuald and states that the painting is "very probably by Palmerucci[o]"; notes the strong influence of the early work of Pietro Lorenzetti; concurs with a date in the 1320s; finds a close similarity between this picture and a Madonna and Child in the Gubbio museum.
Enrica Neri Lusanna. "Precisazioni e aggiunte alla pittura eugubina del Trecento." Paragone 36 (January–March–May 1985), p. 40, tentatively accepts Mello da Gubbio as the author of the paintings long associated with Palmeruccio, but separates these paintings into two groups, possibly by two individuals within a single workshop; associates this painting with the second group, which also includes the Madonna and Child in the Gubbio museum.
Filippo Todini. La pittura umbra dal Duecento al primo Cinquecento. Milan, 1989, vol. 1, p. 253; vol. 2, fig. 338 (framed, in reverse), includes it in a list of works he attributes to an artist he calls Pseudo Palmerucci; states that it is a fragment of the same polyptych as the Madonna and Child in the museum in Gubbio and also an Annunciation in the same museum.
Walter Angelelli and Andrea G. De Marchi. Pittura dal Duecento al primo Cinquecento nelle fotografie di Girolamo Bombelli. Milan, 1991, p. 244, no. 509, ill., as by Pseudo Palmerucci, tentatively identified as Mello da Gubbio.