A drawing of a Pope crowing an Emperor, an angel flying down to touch (or possibly remove?) the Imperial crown; crowds standing around.

No convincing attribution for this drawing has been proposed. It is inscribed in pencil in a hand of the eighteenth century, ‘Pirro Ligorio’, and Popham (in P&W) tentatively followed this old attribution. 

Ferdinando Bologna suggested an attribution to the Spanish artist Pedro de Rubiales (Roviale Spagnuolo; see F. Bologna, Roviale Spagnuolo e la pittura del Cinquecento, Naples 1958, pp. 52, 85). Giorgio Vasari mentioned Rubiales, who worked in Rome as a collaborator of Francesco Salviati, as making a copy of Salviati's Conversion of Saul for the church of Santo Spirito in Sassia. From 1548 to 1553, Rubiales is documented in Naples, employed by the prince of Sulmona to paint his chapel in the church of Monteoliveto, Sant’Anna dei Lombardi.

A note in the British Museum's desk copy of P&W states 'cf. Munich 2683 called Nebbia.'