John William Polidori
John William Polidori (1795–1821) was an Italian-English physician and writer, known for his associations with the Romantic movement and credited by some as the creator of the vampire genre of fantasy fiction. His most successful work was the 1819 short story, The Vampyre, the first vampire story in English. Although originally and erroneously accredited to Lord Byron, both Byron and Polidori affirmed that the story is Polidori's.
John William Polidori. Wikipedia.