Elizabeth Pepys (née Elisabeth St Michel) (23 October 1640 - 10 November 1669) was the wife of Samuel Pepys whom she married in 1655, shortly before her 15th birthday. Her father, Alexandre de St. Michel, was born a FrenchCatholic, but converted to the Protestant faith. He married Dorothea, the daughter of Sir Francis Kingsmill, in Ireland. Most of what is known about Elizabeth comes from her husband's diary. She died of typhoid fever in 1669.