Alexandre Colonna-Walewski

Alexandre Florian Joseph, Count Colonna-Walewski (Polish: Aleksander Florian Józef Colonna-Walewski; 4 May 1810 – 27 September 1868), was a Polish and French politician and diplomat. Walewski was widely rumoured to be the (unacknowledged) illegitimate son of Napoleon I by his mistress, Countess Marie Walewska, although her husband (Athanasius, Count Walewski) legally acknowledged him as his own son. In 2013, published scholarship comparing DNA haplotype evidence taken from Emperor Napoleon, from his brother King Jérôme Bonaparte's descendant Charles, Prince Napoléon and from Colonna-Walewski's descendant indicated Alexandre's membership in the genetic male-line of the imperial House of Bonaparte.