Head of a young man

A photograph of a drawing now in the Royal Library at Windsor Castle (RCIN 912752). The drawing has been sometimes described as a copy of the head of the foremost figure running alongside the rider in the centre-right foreground of the fresco of 'The Expulsion of Heliodorus from the Temple', painted by Raphael in 1511-12 in the Stanza di Eliodoro in the Vatican.