Prince Wilhelm Radziwill (1845-1911) (1845–1911) Parents Wilhelm Fürst von Radziwill Mathilde Gräfin von Clary und Aldringen Children Nicolas Radziwill Wanda Radziwill Ludowika Radziwill Gabrielle Radziwill Siblings Prince Janusz Radziwill Antoni Wilhelm Radziwiłł Princess Ludowika Radziwill Princess Eufemia Radziwill Princess Matylda Radziwill Princess Elira Radziwill Princess Leontyna Radziwill Partners Catherine Radziwiłł