From Wikimedia; spots removed throughout with Photoshop and sepia tone removed.
Maria Teresa uses her lace shawl as a veil with flared, but not full pagoda, sleeves visible beneath it.
Keywords: Engel, Maria Teresa Bragança, Princesa da Beira, condesa de Molina, Bragança family, Borbón family, Carlista, Princess, Infanta, straight coiffure, shawl, lace, chemisette, high neckline, collar, long under-sleeves, bodice, three quarter length flared sleeves, ruffles, crinoline, flounces, fan