MARY WOLLSTONECRAFT SHELLEY (1797 - 1851) was born in 1797, the daughter of two famous English thinkers. Her father, William Godwin, was the author of Political Justice (1793), a criticism of the society of the time. Her mother, Mary Wollstonecraft, had written a well-known book about the feminist cause. The poet Percy Shelley was a great admirer of William Godwin's work and fell in love with Mary. Although Shelley was married at the time, he and Mary left England for France and Switzerland in 1814. Two years later, while they were staying in Lord Byron's villa in Switzerland, Mary first had the idea for the story about Victor Frankenstein, and "Frankenstein" was published in 1818. When Mary returned to England in 1823, "Frankenstein" had already become a very popular novel. Mary Shelley's other novels include "The Last Man" (1826) and "Lodore" (1835).