María de la Encarnación Gertrudis Jacoba Aragoneses y de Urquijo (17 November 1886 in Madrid – 8 May 1952 in Madrid) was a Spanish author of children's literature who wrote under the pen name Elena Fortún. She became famous for Celia, lo que dice ("What Celia Says") the first in the series of children's novels which were a collection of short stories first published in magazines in 1929. The series were both popular and successful during the time of their publications and are today considered classics of Spanish literature.