Bernardo Polo is recorded as working in Zaragoza, the capital of Aragón, in the third quarter of the 17th century. His highly distinctive body of work was formerly grouped under the pseudonym the "Pseudo-Hiepes” by William Jordan and Peter Cherry. It was not until 2009 that the first signed work by Polo came to light, allowing for the identification of a corpus of over forty still lifes to this master.1
A variation in quality and repetition of compositional elements among the known works indicates that Polo most likely had a large workshop with studio assistants in order to meet the demand for his highly popular compositions. Based on images, Dr. William Jordan believes this painting to be a collaboration between Bernardo Polo and his workshop.
1. See W.B. Jordan, "El Pseudo-Hiepes es Bernardo Polo," in Archivo Español de Arte, LXXXII, 328, October-December 2009, pp. 393-403.