Prince Louis of Luxembourg and Prince Laurent of Belgium attend the wedding ceremony of Jean-Christophe Napoleon Bonaparte and Olympia von Arco-Zinneberg at the Saint-Louis des Invalides Cathedral in Paris, France, October 19, 2019. REUTERS/Benoit Tessier 

(L-R) Prince Sebastien of Luxembourg, Prince Felix of Luxembourg, Prince Louis of Luxembourg and Princess Tessy of Luxembourg arrive at the religious wedding service of Luxembourg's Hereditary Grand Duke Guillaume and Countess Stephanie de Lannoy at the Notre-Dame Cathedral in Luxembourg October 20, 2012. REUTERS/Francois Lenoir (LUXEMBOURG - Tags: ENTERTAINMENT SOCIETY ROYALS)

(L-R) Prince Sebastien of Luxembourg, Prince Felix of Luxembourg, Prince Louis of Luxembourg and Princess Tessy of Luxembourg arrive at the religious wedding service of Luxembourg's Hereditary Grand Duke Guillaume and Countess Stephanie de Lannoy at the Notre-Dame Cathedral in Luxembourg October 20, 2012. REUTERS/Francois Lenoir (LUXEMBOURG - Tags: ENTERTAINMENT SOCIETY ROYALS)

Prince Louis of Luxembourg (R) and Princess Tessy of Luxembourg, Prince Felix of Luxembourg (L) arrive at the religious wedding service of Luxembourg's Hereditary Grand Duke Guillaume and Countess Stephanie de Lannoy at the Notre-Dame Cathedral in Luxembourg October 20, 2012. REUTERS/Vincent Kessler (LUXEMBOURG - Tags: ENTERTAINMENT SOCIETY ROYALS)

Prince Louis of Luxembourg (R) and Princess Tessy of Luxembourg arrive at the religious wedding service of Luxembourg's Hereditary Grand Duke Guillaume and Countess Stephanie de Lannoy at the Notre-Dame Cathedral in Luxembourg October 20, 2012. REUTERS/Vincent Kessler (LUXEMBOURG - Tags: ENTERTAINMENT SOCIETY ROYALS)

Prince Louis of Luxembourg (L) and Princess Tessy of Luxembourg arrive at the religious wedding service of Luxembourg's Hereditary Grand Duke Guillaume and Countess Stephanie de Lannoy at the Notre-Dame Cathedral in Luxembourg October 20, 2012. REUTERS/Vincent Kessler (LUXEMBOURG - Tags: ENTERTAINMENT SOCIETY ROYALS)

Luxembourg's Princes Sebastien (L), Louis (C) and Felix (R) arrive for a gala dinner celebrating the wedding of Luxembourg's Hereditary Grand Duke Guillaume and his wife Countess Stephanie de Lannoy at the Grand Ducal Palace of Luxembourg October 19, 2012. REUTERS/Vincent Kessler (LUXEMBOURG - Tags: ROYALS SOCIETY ENTERTAINMENT)

Prince Louis of Luxembourg and Tessy Antony are seen during their wedding in the Church of Gilsdorf in Luxembourg September 29, 2006. REUTERS/Manuel Dias/Pool (LUXEMBOURG) 

Luxembourg's Grand Duke Jean (L) and Grand Duke Henri pose as they arrive for the wedding ceremony for Luxembourg's Prince Louis at the Gilsdorf church in Luxembourg, September 29, 2006. Prince Louis, who has a 6-month old son Gabriel with commoner Tessy Antony, renounced his right to the title of Grand Duke of Luxembourg through the marriage. REUTERS/Philppe Gisselbrecht (LUXEMBOURG) 

Luxembourg's Prince Louis (C) and his bride Tessy Antony pose for a family photo after their wedding ceremony at the church of Gilsdorf in Luxembourg, September 29, 2006. Prince Louis, who has a 6-month old son Gabriel with commoner Tessy Antony, renounced his right to the title of Grand Duke of Luxembourg through the marriage. From L-R : Mrs Heidemann, Regine Anthony, Francois Anthony, the wedding couple, Grand Duchess Maria Teresa who holds Gabriel, Grand Duc Henri and Grand Duc Jean. REUTERS/Philppe Gisselbrecht (LUXEMBOURG) 

Bride Tessy Antony holds the arm of her father Francois outside the church of Gilsdorf in Luxembourg as they arrive for the wedding ceremony with Luxembourg's Prince Louis, September 29, 2006. Prince Louis, who has a 6-month old son Gabriel with commoner Tessy Antony, renounced his right to the title of Grand Duke of Luxembourg through the marriage. REUTERS/Philppe Gisselbrecht (LUXEMBOURG) 

Bride Tessy Antony holds the arm of her father Francois outside the church of Gilsdorf in Luxembourg as they arrive for the wedding ceremony with Luxembourg's Prince Louis, September 29, 2006. Prince Louis, who has a 6-month old son Gabriel with commoner Tessy Antony, renounced his right to the title of Grand Duke of Luxembourg through the marriage. REUTERS/Philppe Gisselbrecht (LUXEMBOURG) 

Luxembourg's Prince Louis (L) and Grand Duchess Maria Teresa stand together after the wedding ceremony between the Prince and Tessy Antony at the church of Gilsdorf in Luxembourg, September 29, 2006. Prince Louis, who has a 6-month-old son Gabriel with commoner Tessy Antony, renounced his right to the title of Grand Duke of Luxembourg through the marriage. REUTERS/Philppe Gisselbrecht (LUXEMBOURG) 

Luxembourg's Prince Louis (C) and his bride Tessy Antony look over at Grand Duchess Maria Teresa, who is holding their six-month old baby Gabriel, after their wedding ceremony at the church of Gilsdorf in Luxembourg, September 29, 2006. Prince Louis, who has a 6-month old son Gabriel with commoner Tessy Antony, renounced his right to the title of Grand Duke of Luxembourg through the marriage. REUTERS/Philppe Gisselbrecht (LUXEMBOURG) 

Luxembourg's Prince Louis (R) kisses his bride Tessy Antony after their marriage at the church of Gilsdorf in Luxembourg, September 29, 2006. Prince Louis, who has a 6-month old son Gabriel with commoner Tessy Antony, renounced his right to the title of Grand Duke of Luxembourg through the marriage. REUTERS/Philppe Gisselbrecht (LUXEMBOURG) 

Grand Duchess Maria Teresa holds six-month old baby Gabriel at a wedding ceremony between Luxembourg's Prince Louis and Tessy Antony in the Gilsdorf church in Luxembourg September 29, 2006. Prince Louis, who has a 6-month old son Gabriel with commoner Tessy Antony, renounced his right to the title of Grand Duke of Luxembourg through the marriage. REUTERS/Philppe Gisselbrecht (LUXEMBOURG) 

(L to R) Luxembourg's Prince Louis, Princess Alexandra, Crown Prince Guillaume, Grand Duchess Maria Teresa, Grand Duke Henri, Prince Sebastian and Prince Felix pose for photographers before a dinner celebrating Grand Duke Henri and Grand Duchess Maria Teresa's silver wedding at the Berg castle in Colmar July 1, 2006. 

(L to R) Luxembourg's Prince Louis, Princess Alexandra, Crown Prince Guillaume, Grand Duchess Maria Teresa, Grand Duke Henri, Prince Sebastian and Prince Felix pose for photographers before a dinner celebrating Grand Duke Henri and Grand Duchess Maria Teresa's silver wedding at the Berg castle in Colmar July 1, 2006. REUTERS/Francois Lenoir (LUXEMBOURG) 

Pope Benedict XVI (C) meets the Arch Duke Henri of Luxembourg (4th L), his wife Grand Duchess Maria Teresa (3rd R) and their children (L to R) Princes Louis, Felix, Guillaume, Princess Alexandra and Prince Sebastian during an audience in his private library at the Vatican May 8, 2006. REUTERS/Alessandro Bianchi 

(L to R) Luxembourg's Prince Sebastien, Princess Alexandra, Princes Louis and Felix, walk to the Cathedral Notre Dame to attend the state funeral of their grand mother Luxembourg's Grand Duchess Josephine-Charlotte, in Luxembourg, January 15, 2005. [Josephine-Charlotte,daughter of former Belgian King Leopold III and the sister of current Belgian King Albert II, died last Monday, aged 77, of cancer at the Fischbach castle in Luxembourg.] 

Princes pose for a family picture in the Grand Ducal Palace during the "Joyeuse Entree" of the Grand Duke Henri and the Duchess Maria Teresa in Luxembourg, April 7, 2001. (L-R, first row) Prince Albert of Monaco, Prince Willem-Alexander of Netherlands, Grand Duchess Maria Teresa, Grand Duke Henri, Prince Guilllaume of Luxembourg, Belgian Princess Mathile and Prince Philippe. (L-R, second row), Prince Louis, Princess Sophie of Lichtenstein, Prince Felipe of Spain, Princess Victoria of Sweden, Prince Haakon of Norway, Miss Mette-Marit Tjessen Hoiby and Prince Frederik of Denmark.

FLR 

Luxembourg Grand Duke Henri (C) jumps with his sons Prince Felix (L) and Prince Louis (R) on the "Adrelin Space" ride at the Expo-98 August 29. Luxembourg Grand Duke Henri is on a three day visit to Lisbon's World's Fair.