There has been some doubt cast over the attribution of the painting to Rubens, led by the artist and scholar of Fayum portraits Euphronsyne Doxiades. She argues that it varies in details from copies of the original made during Rubens' lifetime, that it does not employ the layering technique of "glazing" common in oil painting at the time and mastered by Rubens, and that its provenance can not be documented with certainty between 1641 and 1929. A dendrochronological examination of the painting, however, confirms that the painting dates to the correct period, and the attribution has been accepted by a majority of the art historical scholarly community.