Today, Grand Duke Henri abdicates the Luxembourg throne in favor of his eldest son, the new Grand Duke Guillaume.
The abdication follows Luxembourg royal tradition, as the past three generations of monarchs have all abdicated and Grand Duke Guillaume becomes just the tenth monarch in Luxembourg’s history since the country became a grand duchy in 1815. In light of this historic news, get to know the Luxembourg royal family tree:
Design by Michael Stillwell
The Grand Ducal family of Luxembourg.
More on each member of the Grand Ducal family, below.
Grand Duke Henri
Mark Cuthbert//Getty Images
Grand Duke Henri at King Charles’s coronation in 2023.
b. 1955
The eldest son of Grand Duke Jean (b. 1921, d. 2019) and Princess Joséphine-Charlotte of Belgium (b. 1927, d. 2005), Henri was born at the Betzdorf Castle in Luxembourg. He has royalty on both sides of his family; his father descends from the grand ducal family of Luxembourg and his mother, Princess Charlotte, was the only daughter of Belgium’s King Leopold III (b. 1901, d. 1983) and Sweden’s Princess Astrid (b. 1905, d. 1935). He is a first cousin of King Philippe of Belgium (b. 1960).
Henri has four siblings, Princess Marie-Astrid (b. 1954), Prince Jean (b. 1957), Princess Margaretha (b. 1957) and Prince Guillaume (b. 1963). He grew up in Luxembourg, and studied in France, Switzerland, and the UK, including at the Royal Military Academy Sandhurst. While studying political science at the University of Geneva, he met María Teresa Mestre y Batista; they married in 1981 and have five children and eight grandchildren. (See below).
In 2000, upon his father’s abdication, he acceded as Grand Duke of Luxembourg. He lives with his family at Berg Castle in Luxembourg.
Grand Duchess Maria Teresa
Geert Vanden Wijngaert//Getty Images
The former Grand Duchess pictured in 2024.
b. 1956
The Grand Duchess was born María Teresa Mestre y Batista in Havana, Cuba to parents José Antonio Mestre y Álvarez (b. 1926, d. 1993) and María Teresa Batista y Falla de Mestre (b. 1928, d. 1988). In 1960, her parents moved their family to New York City because of the Cuban revolution. (She has two brothers and one sister.)
María Teresa attended Marymount School and the Lycée Français de New York. She later went to boarding school in Geneva, then onto the University of Geneva, where she met her future husband Henri. Upon their marriage in 1981 she became Princess Maria Teresa, and upon her father-in-law’s abdication, she became the Grand Duchess of Luxembourg.
Related StoryGrand Duke Guillaume
Patrick van Katwijk//Getty Images
Guillaume last year.
b. 1981
The new Grand Duke, Guillaume, is the eldest child and son of Henri and Maria Teresa. He studied at Swiss boarding schools and the Royal Military Academy Sandhurst, before attending various institutions of higher education. He graduated with his bachelor’s degree from Insitut Albert-le-Grand in Angers, France in 2009.
In 2012, he announced his engagement to Countess Stéphanie de Lannoy (see below), and they married later that year. He and his wife have two children: Prince Charles (b. 2020) and Prince François (b. 2023), who follow him in the line of succession to the Luxembourgish throne.
Related StoryGrand Duchess Stéphanie
Patrick van Katwijk//Getty Images
Stéphanie earlier this year.
b. 1988
Born Countess Stéphanie de Lannoy, Stéphanie is the youngest child of Count Philippe de Lannoy (b. 1922, d. 2019) and Alix della Faille de Leverghem (b. 1941, d. 2012) She has seven siblings, all of whom are part of the Belgian noble family, the House of Lannoy. Stéphanie studied the University of Louvain (UCLouvain) and got her master’s degree from the Humboldt University of Berlin.
Arnold Jerocki//Getty Images
Prince Guillaume, Princess Stéphanie, and their eldest, Prince Charles, in 2023.
In 2012, upon marrying Guillaume, Countess Stéphanie became Hereditary Grand Duchess of Luxembourg. She became a naturalized Luxembourg citizen, renouncing her Belgian citizenship. “As the Hereditary Grand Duchess, I am proud to share my husband’s nationality. Belgium will always be the country of my childhood and where my roots are, but I don’t think keeping Belgian citizenship is consistent with the job that awaits me from now on,” she said.
Prince Félix
Patrick van Katwijk//Getty Images
Prince Félix earlier this year.
b. 1984
Henri and Maria Teresa’s second son, Prince Félix, is currently fourth in line to the Luxembourg throne. In 2013, he graduated from Pontifical Athenaeum Regina Apostolorum in Rome with a bachelor’s degree in bioethics.
Handout//Getty Images
The newlyweds in 2013 at the Couvent Royal De Saint-Maximin after their wedding ceremony.
In 2013, he married Claire Lademacher (b. 1985), now Princess Claire of Luxembourg. They have three children: Princess Amalia (b. 2014), Prince Liam (b. 2016) and Prince Balthazar (b. 2024).
They now live at Château Les Crostes, a winery in Lorgues, France owned by her family. They took over the winery and modernized it in 2022.
Prince Louis
Patrick van Katwijk//Getty Images
Prince Louis earlier this year.
b. 1986
The middle child of Henri and Maria Teresa, Prince Louis currently works in the field of “corporate responsibility”; he runs a mediation company, and is a consultant who helps dyslexic people in the workplace, according to his official bio.
Patrick van Katwijk//Getty Images
Prince Louis and his sons on Luxembourg National Day 2025.
In 2006, he married Tessy Antony (b. 1985); they met when they were both serving in the army. Before they were married, they welcomed their eldest son, Prince Gabriel (b. 2006); Prince Louis was 19 at the time. They following year, they had another son, Prince Noah (b. 2007). The couple divorced in 2019, and Tessy lost her royal title of Princess.
In 2021, Antony remarried to Swiss businessman Frank Floessel; they have a son, Theodor (b. 2021).
Princess Alexandra
Sylvain Lefevre//Getty Images
Princess Alexandra of Luxembourg and Nicolas Bagory on their wedding day, April 2023.
b. 1991
Henri and Maria Teresa’s only daughter is Princess Alexandra. She married Nicholas Bagory (b. 1988) in 2023; they have one daughter, Victoire Bagory (b. 2024) and they are expecting their second child.
Prince Sébastien
Patrick van Katwijk//Getty Images
Prince Sébastien in 2025.
b. 1992
The youngest child of Henri and Maria Teresa, Prince Sébastien graduated with a degree in Marketing and Communications from the Franciscan University of Steubenville in 2015. He subsequently attended Royal Military Academy of Sandhurst, and is an officer of the Luxembourgish army. He currently commands a platoon of the Irish Guards, a regiment of the British Army, according to his official bio.
Emily Burack (she/her) is the Senior News Editor for Town & Country, where she covers entertainment, celebrities, the royals, and a wide range of other topics. Before joining T&C, she was the deputy managing editor at Hey Alma, a Jewish culture site. Follow her @emburack on Twitter and Instagram.