Princess Maria Karoline of Saxe-Coburg and Gotha
Updated: Wikipedia source
Princess Maria Karoline of Saxe-Coburg and Gotha (German: Maria Karoline Philomena Ignatia Pauline Josepha Michaela Gabriela Raphaela Gonzaga Prinzessin von Sachsen-Coburg und Gotha; 10 January 1899 – 6 June 1941) was a German princess from the Brazilian branch of the House of Saxe-Coburg and Gotha-Koháry. She was killed at the Hartheim killing centre as part of the Nazi Aktion T4 program.