We are grateful to Dott.ssa Federica Spadotto for endorsing the attribution to Zuccarelli on the basis of photographs, and proposing a date of execution in the late 1760s, during the artist's final sojourn in England. A variant of the work, with a similar landscape and tented encampment but some differences in the staffage, is in a private collection.1
1. See F. Spadotto, Francesco Zuccarelli, Milan 2007, cat. no. 394, p. 172.