Umberto I of Italy
Maria Letizia's father Napoléon Joseph was a nephew of Emperor Napoleon Bonaparte through his brother Jérôme Bonaparte, King of Westphalia. This then made Maria Letizia a great-niece of Emperor Napoleon. Her mother Maria Clotilde was a daughter of Victor Emmanuel II of Italy. Through this connection, Maria Letizia was a niece of King Umberto I of Italy and Queen Maria Pia of Portugal.