Polish countess and mistress of Napoleon Bonaparte (Napoleon I), whom she met in Poland (1806) and followed to Paris and finally Elba.

She sought to influence his eastern European policy and to move him to create the Duchy of Warsaw (Warsaw, Duchy of). On May 4, 1810, she bore him a son, Alexandre-Florian-Joseph Colonna, Comte Walewski. Walewska was married twice—in 1804 to the Polish count Anastazy Walewski and in 1816 to the French general Philippe-Antoine d'Ornano, formerly one of Napoleon's closest aides.