Hortense Eugénie Cécile Bonaparte was Queen consort of Holland. She was the stepdaughter of Emperor Napoléon I as the daughter of his first wife, Joséphine de Beauharnais. Hortense later married Napoléon I’s brother, Louis Bonaparte, who had been made King of Holland, making her her stepfather’s sister-in-law. She was the mother of Napoléon III, Emperor of the French; Louis II of Holland; and Napoléon Louis Charles Bonaparte who died at the age of four. She also had an illegitimate son, Charles, Duke of Morny, with her lover, the Comte de Flahaut.

Carolina Maria Annunziata Bonaparte, better known as Caroline Bonaparte, was an Imperial French princess; the seventh child and third daughter of Carlo Buonaparte and Letizia Ramolino, and a younger sister of Napoleon I of France. She was queen of Naples during the reign of her spouse there, and regent of Naples during his absence four times: in 1812–1813, 1813, 1814, and 1815.