Karol Stefan Altenburg (born 1921) (1921–2018) Parents Alice Habsburg Archduke Karl Albrecht of Austria Children Maria Christina Habsburg Prinzessin von Altenburg Karl Albrecht Habsburg Prinz von Altenburg Siblings Karl-Albrecht Habsburg Joachim Badeni Maria Krystyna Altenburg Renate Maria Habsburg Prinzessin von Altenburg Partners Marie-Lovisa af Petersens
