Fortunata and Jacinta — Benito Perez Galdoz

Galdos has been called the Balzac or Dickens of Spain, and "Fortunata and Jacinta" (1887) is his masterpiece. Set in Madrid between 1868 and 1875, it treats both political tumult and personal obsession, telling the story of two women who love the same man - one his mistress and the other his wife.