Napoleon and Josephine Bonaparte
Up-and-coming French general Napoleon Bonaparte first spotted the widow Marie-Josephe-Rose de Beauharnais at a party. Her then-lover set her up by telling her to entertain the general; Napoleon was instantly smitten, and pursued her relentlessly. She gave in, and the couple were married in 1796. (Napoleon insisted on calling her Josephine instead of her given name, Rose.) They stayed married for 13 years, and though Josephine was known to stray often, Napoleon was deeply in love with her.