Frances "Fanny" Imlay (14 May 1794 – 9 October 1816), also known as Fanny Godwin and Frances Wollstonecraft, was the illegitimate daughter of the British feminist Mary Wollstonecraft and the American commercial speculator and diplomat Gilbert Imlay. Wollstonecraft wrote about her frequently in her later works. Fanny grew up in the household of anarchist political philosopher William Godwin, the widower of her mother, with his second wife Mary Jane Clairmont and their combined family of five children. Fanny's half-sister Mary grew up to write "Frankenstein" and married Percy Bysshe Shelley, a leading Romantic poet, who composed a poem on Fanny's death.