This study in oil paint of a Cavalier King Charles spaniel relates closely to a dog in one of Paolo Veronese’s paintings. This has led to suggestions that it may be by Veronese himself. There are, however, no other oil sketches like this in Veronese’s surviving oeuvre. The attribution of this sheet to Passerotti is based on the inscription, which claims he painted it in Verona (‘passarota in Verona feci[t]’). Other oil sketches on paper by Passerotti exist, and it is entirely possible that he copied this detail from one of Veronese’s compositions. Passerotti was extremely fond of dogs and frequently included them in his portraits.