[1][2] Her father, founder of LHS Telekommunikation and owner of castles in Croatia and Saint-Tropez, began his career at IBM and amassed an estimated €600 million by investing in the software industry.
[6] She proceeded to obtain a master's degree in bioethics at the Pontifical Athenaeum Regina Apostolorum, receiving it with the distinction summa cum laude.
[4] At the same time, she was working for the UNESCO Chair of Bioethics and Human Rights, concerning herself primarily with research, event coordination and communications.
[1][5] In February 2018, Princess Claire became a visiting professor at the Faculty of Bioethics at the Ateneo Pontificio Regina Apostolorum University in Rome.
In October, they attended the wedding of his older brother Hereditary Grand Duke Guillaume and Countess Stéphanie de Lannoy, but were not allowed to sit together at the ceremony.
[11] Since their wedding, they live in the south of France at the Château Les Crostes, a winery in Lorgues that has been owned by the Lademacher family for many years.
[5] In March 2018, she attended the Ethics in Action ('Modern Slavery, Human Trafficking, and Access to Justice for the Poor and Vulnerable’) conference at the Pontificia Academia Scientiarum of the Vatican.
In March 2019, Claire became a speaker in the panel discussion on the inclusion of children born of rape at the Stand Speak Rise Up!