Complex sentence: Princess Maria Luisa of Bourbon-Parma (17 January 1870--31 January 1899) was the eldest daughter of Robert I the last reigning Duke of Parma.
Split into simpler sentences: Princess Maria Luisa of Bourbon-Parma (17 January 1870--31 January 1899). She was the eldest daughter of Robert I the last reigning Duke of Parma.