Antique portrait titled 'Algernoon Piercy, Earl of Northumberland'. Old portrait of Algernon Percy. Algernon Percy, 10th Earl of Northumberland, 4th Baron Percy, (1602-1668) was an English military leader and a prominent supporter of the Parliamentary cause in the English Civil War. This print originates from 'The Heads of Illustrious Persons of Great Britain, engraven by Mr. Houbracken, and Mr. Vertuewith their Lives and Characters by Thomas Birch, A.M., F.R.S'. Artists and Engravers: Published in London by John and Paul Knapton 1742-1756. Condition: Very good, original text page included. Please study image carefully. Date: c.1750 Overall size: 36 x 53 cm. Image size: 22 x 36 cm.