Pope Pius VII.
This man stands in front of a blazing sunset studiously examining a rock limpet in a J. M. W. Turner painting created as a counterpart to a depiction of David Wilkie's sea burial. He adopts an  adlocutio  pose while granting a blessing to a crowd of men holding banners and giving Roman salutes in the painting The Distribution of the Eagle Standards . This man's mother ahistorically appears in a massive canvas that depicts him receiving a blessing from (*)  Pope Pius VII. Rocks engraved with this man's surname and the names of Charlemagne and Hannibal appear below a rearing horse ridden by this ruler in a painting depicting him crossing the Alps by Jacques-Louis David, who often depicted this man with his hand in his waistcoat. For 10 points, name this French emperor.
This man stands in front of a blazing sunset studiously examining a rock limpet in a J. M. W. Turner painting created as a counterpart to a depiction of David Wilkie's sea burial.
Napoleon   Bonaparte  [accept either underlined portion; accept  Napoleon  I]