Complex sentence: Her father, Mariano Tristán y Moscoso, was an Arequipa-born Peruvian colonel of the Spanish Navy, she is also niece of Pío de Tristán viceroy of Peru and her mother, Anne Laisney, a Frenchwoman.
Split into simpler sentences: Her father, Mariano Tristán y Moscoso, was an Arequipa-born Peruvian colonel of the Spanish Navy. She is also niece of Pío de Tristán viceroy of Peru and her mother, Anne Laisney, a Frenchwoman.