Count Baltzar von Platen
(1804-1875)

Identified in the Silvy daybooks and by a pencilled inscription verso as 'Count Platen,' this is Count Baltzar von Platen, who from 1857 to 1861 was the King of Sweden and Norway's Envoy to the Court of St James's. He resided at 49 Grosvenor Street, London.