Complex sentence: According to the legend, Emily D. West (also known as "Emily Morgan") was seized by Mexican forces during the looting of Galveston and seduced General Antonio López de Santa Anna, President of Mexico and commander of the Mexican forces.
Split into simpler sentences: According to the legend, Emily D. West (also known as "Emily Morgan") was seized by Mexican forces during the looting of Galveston. She seduced General Antonio López de Santa Anna, President of Mexico and commander of the Mexican forces.