[5] From March to July 2004, she took part in a mission in Yugoslavia, as Sdt 1cl Chauffeur C2, in Mitrovica within KFOR, the NATO peacekeeping force in Kosovo.

Additionally, from 2005 to 2009, Antony de Nassau attended several trainings and lectures relating to the topics of "Education and psychology.

"[citation needed] She earned her MA degree in International Studies and Diplomacy from SOAS, University of London in 2015.

[9] In 2016, Antony de Nassau co-founded Professors Without Borders, an NGO specializing in international educational efforts, and is currently[when?]

[12] On 12 March 2006, Antony gave birth to a boy, christened Gabriel Michael Louis Ronny de Nassau,[13] who was born at a private Swiss hospital, Clinic des Grangettes, in Geneva.

The couple's second son, Noah Etienne Guillaume Gabriel Matthias Xavier de Nassau, was born on 21 September 2007 at Grand Duchess Charlotte Maternity Hospital.

The same decree gave the title Prince of Nassau and style Royal Highness to her and Louis' sons Gabriel and Noah and possible future children.

In the event of separation of bed and board, of divorce or remarriage after spousal death, the titles enjoyed by consorts of the Princes of Our House in accordance with the present decree shall be lost forthwith.

On 31 December 2020, Antony de Nassau announced her engagement to Swiss businessman Frank Floessel on social media.

[28][29] The company, based in San Diego, California, donates a percentage of their profit to support Wildlife Alliance.

[30] A keen sportsperson, Antony de Nassau regularly practises the following sports: swimming, spinning, hiking, pilates, scuba diving, skiing and hunting.