by Scott Mehl  © Unofficial Royalty 2014

Tessy Antony de Nassau in Thailand with Professors Without Borders in July 2019; Credit – Wikipedia

Tessy Antony de Nassau is the former wife of Prince Louis, the third son of Grand Duke Henri and Maria Teresa Mestre y Batista-Falla. Tessy Antony was born in Luxembourg on October 28, 1985, the daughter of François and Régine Antony, on October 28, 1985, in Luxembourg. Tessy has a twin brother Ronny, an older brother Mike and an older sister Patty. Another sibling, Mike’s twin Jerry, passed away shortly after birth.

Tessy completed her primary and secondary education in Luxembourg, before entering the Luxembourg Army at the age of 18. While serving on a mission connected to the NATO force in Kosovo, Tessy first met her future husband in 2004 when he was visiting troops in Yugoslavia.

photo: Order of Sartorial Splendor

In September 2005, the Royal Court announced that Prince Louis and Tessy Antony were expecting a child together. Tessy gave birth to a son, Gabriel Michael Louis Ronny, on March 12, 2006, in Geneva, Switzerland. As the couple was not married, the child was not given any royal titles and was simply Gabriel de Nassau. Tessy and Louis married six months later, on September 29, 2006, in Gilsdorf, a small village in northeast Luxembourg. At that time, Prince Louis relinquished his rights to succession for himself and his descendants. He retained his royal title and style, but Tessy simply became Tessy de Nassau.

On September 21, 2007, the couple’s second son, Noah Etienne Guillaume Gabriel Matthias Xavier, was born in Luxembourg. On Luxembourg’s National Day in 2009, Grand Duke Henri granted Tessy the title of Princess of Luxembourg with the style of Her Royal Highness, and raised their children to Prince of Nassau, also with the style of Royal Highness.

photo © 2014 Cour grand-ducale / Hana Noguch

Following two years living in the United States while Prince Louis received training in Aeronautics and Aeronautical Management, the couple moved to London where both Tessy and Louis enrolled at Richmond American University. They both received their Bachelor’s degrees in May 2014, Tessy in International Relations, and Louis in Communications. Tessy also received a masters degree in diplomatic studies at the University of London. In 2016, Tessy co-founded Professors Without Borders, an NGO specializing in international educational efforts, and is currently its President.

The Grand Ducal Court of Luxembourg announced on January 18, 2017, that Prince Louis and Princess Tessy of Luxembourg plan to divorce.  Their divorce was granted on February 17, 2017, in London where the couple lived, and was finalized on April 4, 2019.  Tessy held her titles until September 1, 2019, when she reverted to her maiden name and with de Nassau, Tessy Antony de Nassau. On December 31, 2020, Tessy announced her engagement to Swiss businessman Frank Floessel and on February 24, 2021, the couple announced that they were expecting their first child together. The couple married on July 23, 2021, in Zürich, Switzerland.  Tessy gave birth to a son, Theodor Frank Floessel, on August 26, 2021, at Hirslanden Clinic in Zurich., Switzerland.

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