Sir Percy Blakeney is a fictional character created by author Baroness Orczy in her novel "The Scarlet Pimpernel," published in 1905. He is portrayed as a wealthy English aristocrat who leads a double life as a daring hero. Under the guise of a foppish and ineffectual nobleman, he secretly rescues French aristocrats from the guillotine during the French Revolution. Blakeney's alter ego, the Scarlet Pimpernel, is known for his clever disguises and cunning tactics. His adventures often involve outsmarting the ruthless Citizen Chauvelin, a French agent determined to capture him. The character has become a symbol of bravery and cleverness in literature.