 But older estimates for his birthdate were usually earlier, and a date of 1503, meaning an artist of 13 or 14, seems barely credible.An early date was backed by Giovanni Battista Cavalcaselle (d. 1897), Adolfo Venturi (d. 1941) and Gronau and opposed by Pallucchini, Roberto Longhi and Morassi, among others.Hourticq dates it to 1515 (assuming an official intervention by Giovanni Bellini) and Suida to between 1512 and 1520.