"H.S.H. Hereditary Prince Alois". Liechtenstein Princely House Official Website. 30 March 2021. Archived from the original on 17 July 2022. Retrieved 17 July 2022. Princess Marie Caroline, born 17 October 1996
"The Emblems". The Princely House of Liechtenstein. Retrieved 20 June 2023.
"H.S.H. Hereditary Prince Alois". Liechtenstein Princely House Official Website. 30 March 2021. Archived from the original on 17 July 2022. Retrieved 17 July 2022. Princess Marie Caroline, born 17 October 1996