Keywords: Algernon Percy, 10th Earl of Northumberland, unknown artist line engraving, circa 1639-1649.jpg en after Unknown artist line engraving circa 1639-1649 1639-01-01 http //www npg org uk/collections/search/portraitLarge/mw120837/Algernon-Percy-10th-Earl-of-Northumberland LinkID mp03327 search sas sText earl+Percy role sit rNo 4 unknown artist other versions PD-old-70-1923 Uploaded with UploadWizard Algernon Percy 10th Earl of Northumberland 17th-century engravings of men 17th-century portrait engravings in the National Portrait Gallery London |