Wedding of Guillaume, Hereditary Grand Duke of Luxembourg, and Countess Stéphanie de Lannoy

Prince Guillaume and Countess Stéphanie were married in a small civil ceremony on 19 October 2012, conducted by Luxembourg Mayor Xavier Bettel.[2][3]

A white tie gala dinner was held that evening at the Grand Ducal Palace.

The more elaborate, Catholic wedding ceremony was held in Notre-Dame Cathedral the next day.[3] The ceremony, which began shortly after 11:00 a.m. on 20 October, was officiated by Archbishop Jean-Claude Hollerich of the Roman Catholic Archdiocese of Luxembourg.[3] The weather on the day of the ceremony was described as "unseasonably warm."[3] Stéphanie was escorted into the Cathedral by her eldest brother, Count Jehan.[3] Hereditary Grand Duke Guillaume arrived at the ceremony with his mother, Grand Duchess Maria Teresa of Luxembourg.[3]

The bride and groom exchanged wedding rings crafted entirely from fair trade gold.[3]

The couple exchanged a public kiss before a crowd of well-wishers on the balcony of the Grand Ducal Palace after the ceremony.[3]

Dual Cypher of Prince Guillaume and Princess Stephanie (and wedding logo)

Countess Stéphanie's wedding dress was designed by Lebanese fashion designer Elie Saab.[3] The dress was described as an "ivory lace dress embroidered with silver filigree" with "three-quarter length sleeves."[3] Her dress was accompanied by a silk tulle veil, featuring a motif of silver floral designs trailing thirteen feet behind her[3] and the Lannoy family tiara.

Prince Guillaume wore a Luxembourgish military uniform.[3]

The bridal attendants were the bridegroom's sister, nephew and second cousin, and nieces and nephew of the bride:[5]

• Princess Alexandra of Luxembourg
• Antonia Hamilton
• Prince Gabriel of Nassau
• Countess Caroline de Lannoy
• Countess Louise de Lannoy
• Isaure de le Court
• Lancelot de le Court
• Madeleine Hamilton

The couple amidst the grand ducal family after the religious ceremony.

• Grand Duke Jean, the groom's paternal grandfather
  • The Grand Duke and Grand Duchess, the groom's parents
    • Prince Félix and Claire Lademacher, the groom's brother and his girlfriend
    • Prince Louis and Princess Tessy, the groom's brother and sister-in-law
      • Prince Gabriel of Nassau, the groom's nephew
      • Prince Noah of Nassau, the groom's nephew
    • Princess Alexandra, the groom's sister
    • Prince Sébastien, the groom's brother
  • Archduchess Marie-Astrid and Archduke Carl Christian of Austria, the groom's paternal aunt and uncle
    • Archduchess Marie Christine and Count Rodolphe of Limburg-Stirum, the groom's first cousin and her husband
    • Archduke Imre and Archduchess Kathleen of Austria, the groom's first cousin and his wife
    • Archduke Cristoph of Austria and Adélaïde Drapé-Frisch, the groom's first cousin and his fiancée
    • Archduke Alexander of Austria, the groom's first cousin
    • Archduchess Gabriella of Austria, the groom's first cousin
  • Prince Jean and Countess Diane of Nassau, the paternal uncle and aunt
    • Princess Marie-Gabrielle of Nassau, the groom's first cousin
    • Prince Constantin of Nassau, the groom's first cousin
    • Prince Wenceslas of Nassau, the groom's first cousin
    • Prince Carl-Johan of Nassau, the groom's first cousin
  • Princess Margaretha and Prince Nikolaus of Liechtenstein, the groom's paternal aunt and uncle
    • Princess Maria-Anunciata of Liechtenstein, the groom's first cousin
    • Princess Marie-Astrid of Liechtenstein, the groom's first cousin
    • Prince Josef-Emanuel of Liechtenstein, the groom's first cousin
  • Prince Guillaume and Princess Sibilla, the groom's paternal uncle and aunt
    • Prince Paul Louis of Nassau, the groom's first cousin
    • Prince Léopold of Nassau, the groom's first cousin
    • Princess Charlotte of Nassau, the groom's first cousin
    • Prince Jean of Nassau, the groom's first cousin

• Descendants of Princess Elisabeth, Duchess of Hohenberg, the groom's paternal great-aunt:
  • Princess Anna of Hohenberg and Count Andreas of Bardeau, the groom's first cousin, once removed, and her husband
  • Princess Sophie of Hohenberg and Jean-Louis de Potesta, the groom's first cousin, once removed, and her husband
• Descendants of Princess Marie-Adélaïde, Countess Henckel von Donnersmarck, the groom's paternal great-aunt:
  • Countess Charlotte Henckel and Count Christoph Johannes von Meran, the groom's first cousin, once removed, and her husband
• Descendants of Princess Marie Gabriele, Dowager Countess of Holstein-Ledreborg, the groom's paternal great-aunt:
  • Countess Lydia of Holstein-Ledreborg, the groom's first cousin, once removed
  • Countess Veronica of Holstein-Ledreborg, the groom's first cousin, once removed
  • Countess Silvia of Holstein-Ledreborg and John Munro, the groom's first cousin, once removed, and her husband
  • Countess Antonia of Holstein-Ledreborg, the groom's first cousin, once removed
• Descendants of Prince Charles of Luxembourg, the groom's paternal great-uncle
  • Princess Charlotte and Marc-Victor Cunningham, the groom's first cousin, once removed, and her husband
  • Prince Robert and Princess Julie of Nassau, the groom's first cousin, once removed, and his wife
• The Dowager Princess of Ligne, the groom's paternal great-aunt:
  • The Prince and Princess of Ligne, the groom's first cousin, once removed, and his wife
    • Princess Alix de Ligne, the groom's second cousin
  • Prince and Princess Wauthier de Ligne, the groom's first cousin, once removed, and his wife
    • Princess Elisabeth-Eleonore and Baron Baudouin Gillès de Pelichy, the groom's second cousin and her husband
  • Princess Anne and Charles de Fabribeckers de Cortils et Grâce, the groom's first cousin, once removed, and his wife
  • Princess Christine and Prince Antônio of Orléans-Braganza, the groom's first cousin, once removed, and her husband
  • Princess Sophie, Countess Philippe de Nicolay, the groom's first cousin, once removed
  • Prince and Princess Antoine-Lamoral de Ligne, the groom's first cousin, once removed, and his wife
  • Princess Yolande and Hugo Townshend, the groom's first cousin, once removed, and her husband
• * Hélène Vestur, former wife of Prince Jean

• Luis and Nicole Mestre, the groom's maternal uncle and aunt
  • Maike Mestre, the groom's first cousin
  • Luis Mestre, the groom's cousin
• Antonio Mestre, the groom's maternal uncle
• Catalina Esteve, the groom's maternal aunt
  • Natalia Esteve, the groom's cousin
  • Katarina Esteve, the groom's cousin
  • Victoria Esteve, the groom's cousin

• The Count de Lannoy, the bride's father
  • Count Jehan de Lannoy, the bride's brother
    • Countess Caroline de Lannoy, the bride's niece
    • Countess Louise de Lannoy, the bride's niece
  • Count Christian and Countess Luisa de Lannoy, the bride's brother and sister-in-law
  • Countess Nathalie and John Hamilton, the bride's sister and brother-in-law
    • Antonia Hamilton, the bride's niece
    • Charlotte Hamilton, the bride's niece
    • Madeleine Hamilton, the bride's niece
  • Countess Gaëlle de Lannoy, the bride's sister
  • Count Amaury de Lannoy, the bride's brother
  • Count Olivier and Countess Alice de Lannoy, the bride's brother and sister-in-law
  • Countess Isabelle and Jean-Charles de le Court, the bride's sister and brother-in-law
    • Isaure de le Court, the bride's niece
    • Lancelot de le Court, the bride's nephew
• Countess Chantal de Lannoy, the bride's paternal aunt
  • Countess Christine and Count Bruno de Limburg Stirum, the bride's first cousin and her husband
• Countess Isabelle de Lannoy, the bride's paternal aunt
• Count Claude and Countess Claudine de Lannoy, the bride's paternal uncle and aunt

• Ladislas and Anne della Faille de Leverghem, the bride's maternal uncle and aunt
• Lydia and Dominique de Schaetzen, the bride's maternal aunt and uncle
• Dominique and Claude della Faille de Lerverghem, the bride's maternal uncle and aunt
• Arnaud and Marie-Pascale della Faille de Lerverghem, the bride's maternal uncle and aunt

• Queen Fabiola of Belgium, the groom's paternal great-aunt by marriage
• The King and Queen of the Belgians, the groom's paternal great-uncle and great-aunt
  • The Duke and Duchess of Brabant, the groom's first cousin, once removed, and his wife
  • Princess Astrid and Prince Lorenz of Belgium, the groom's first cousin, once removed, and second cousin, once removed
    • Prince Amedeo of Belgium, the groom's second cousin
  • Prince Laurent and Princess Claire of Belgium, the groom's first cousin, once removed, and his wife
• The Queen and Prince Consort of Denmark, the groom's second cousin, twice removed, and her husband
  • The Crown Prince and Crown Princess of Denmark, the groom's third cousin, once removed, and his wife
• Count Axel and Countess Jutta of Rosenborg, the groom's first cousin, twice removed, and his wife
• The Crown Prince of Japan (representing the Emperor of Japan)[1]
• Prince Hassan bin Talal and Princess Sarvath al-Hassan of Jordan (representing the King of Jordan)[1]
  • Prince Rashid bin Hassan and Princess Zeina al-Rashid of Jordan
• The Prince and Princess of Liechtenstein, the groom's third cousin, once removed, and his wife[3]
• Princess Isabelle of Liechtenstein, wife of the groom's third cousin, once removed
  • Prince Wenzeslaus of Liechtenstein, the groom's fourth cousin
• Princess Norberta, Dowager Marchioness of Mariño, the groom's third cousin, once removed
• The Princess of Hanover, estranged wife of the groom's third cousin, twice removed (representing the Prince of Monaco)[3]
• Princess Lalla Salma of Morocco (representing the King of Morocco) [3]
• The Queen of the Netherlands, the groom's fourth cousin, once removed
  • The Prince of Orange and Princess Máxima of the Netherlands, the groom's fifth cousin and his wife
• The King and Queen of Norway, the groom's first cousin, twice removed, and his wife[1]
  • Princess Märtha Louise of Norway, the groom's second cousin, once removed[6]
  • The Crown Prince and Crown Princess of Norway, the groom's second cousin, once removed, and his wife[7]
• Sheikha Al-Mayassa bint Hamad bin Khalifa Al-Thani of Qatar (representing the Emir of Qatar)[8]
• Sheikh Hamad bin Jassim bin Jaber bin Mohammed bin Thani Al Thani of Qatar
• The Prince and Princess of Asturias, the groom's fourth cousin, once removed, and his wife (representing the King of Spain)[7]
• The Queen of Sweden, wife of the groom's third cousin, once removed (representing the King of Sweden)
  • The Crown Princess of Sweden and The Duke of Västergötland, the groom's fourth cousin and her husband
  • The Duke of Värmland, the groom's fourth cousin
• The Earl and Countess of Wessex, the groom's third cousin, twice removed, and his wife (representing the Queen of the United Kingdom)[1]

• Archduchess Maria Beatrice, Countess Riprand von und zu Arco-Zinneberg, the groom's second cousin, once removed
  • Countess Anna von und zu Arco-Zinneberg, the groom's third cousin
  • Countess Olympia von und zu Arco-Zinneberg, the groom's third cousin
• Archduke Martin and Archduchess Katharina of Austria-Este, the groom's second cousin, once removed, and his wife
• Archduchess Isabella and Count Andrea Czarnocki-Lucheschi, the groom's second cousin, once removed, and her husband
• Archduke István and Archduchess Paola of Austria, the groom's second cousin, once removed, and his wife
• Archduchess Yolande of Austria, widow of the groom's first cousin, twice removed
  • Archduke Rudolf and Archduchess Marie-Hélène of Austria, the groom's second cousin, once removed
    • Archduchess Priscilla of Austria, the groom's third cousin
• Archduchess Anna Gabriele of Austria, widow of the groom's first cousin, twice removed
  • Archduchess Maria Anna and Prince Peter Galitzine, the groom's second cousin, once removed, and her husband
  • Archduke Karl Peter and Archduchess Alexandra of Austria, the groom's second cousin, once removed, and his wife
  • Archduke Simeon and Archduchess María of Austria, the groom's second cousin, once removed, and his wife
  • Archduchess Catharina-Maria of Austria and Count Massimiliano Secco d'Aragona, the groom's second cousin, once removed, and her husband
• Archduke Michael and Archduchess Christiana of Austria, the groom's fourth cousin, once removed, and his wife
• Archduchess Sophie and The Prince of Windisch-Graetz, the groom's fourth cousin, once removed, and her husband
• The Margrave and Margravine of Baden, the groom's third cousins, twice removed
  • The Hereditary Prince and Hereditary Princess of Baden, the groom's fourth cousin, once removed, and his wife
• The Duke and Duchess in Bavaria, the groom's second cousin, twice removed, and his wife
• Prince Ludwig of Bavaria, the groom's third cousin
• Princess Gabriele, Dowager Duchess of Croÿ, the groom's first cousin, twice removed
  • The Duke and Duchess of Croÿ, the groom's second cousin, once removed, and his wife
• The Duke and Duchess of Parma, the groom's second cousin, once removed, and his wife[9]
• Princess Edouard de Lobkowicz, the groom's first cousin, twice removed
  • Prince Charles-Henri de Lobkowicz, the groom's second cousin, once removed[10]
• Tsar Simeon II and Tsarita Margarita of the Bulgarians, the groom's half-second cousin, once removed, and his wife
  • The Princess of Turnovo, widow of the groom's half-third cousin
  • The Prince of Preslav, the groom's half-third cousin[11]
• The Duke and Duchess of Vendôme, the groom's fourth cousin and his wife[12]
• The Prince Napoléon, the groom's fourth cousin, once removed
• King Constantine II and Queen Anne-Marie of Greece, the groom's third cousin, twice removed, and second cousin, twice removed
  • Crown Prince Pavlos and Crown Princess Marie-Chantal of Greece, the groom's third cousin, once removed, and his wife
• The Prince and Princess of Venice, the groom's second cousin, once removed, and his wife[13]
• The Prince and Princess of Löwenstein-Wertheim-Rosenberg, the groom's fifth cousin, twice removed, and her husband
• The Duke and Duchess of Braganza, the groom's second cousin, twice removed, and his wife[14]
• The Prince of Prussia, the groom's sixth cousin, once removed[15]
• Princess Alexandra and Count Jefferson von Pfeil und Klein-Ellguth, the groom's third cousin, once removed, and her husband[16]
• The Prince and Princess of Sayn-Wittgenstein-Sayn
• Crown Princess Margareta and Prince Radu of Romania, the groom's second cousin, once removed, and her husband
• Duchess Mathilde, Princess of Waldburg zu Zeil und Trauchburg
• Crown Prince Alexander and Crown Princess Katherine of Yugoslavia, the groom's fourth cousin, once removed, and his wife[17]

• Princess Dainé d'Arenberg
• The Lady Brabourne
• The Prince and Princess de Mérode
  • Princess Blanche and Baron Philipp von und zu Bodman
• The Prince and Princess of Stolberg-Stolberg
• Princess Louise of Stolberg-Stolberg[18]

• Jean-Claude Juncker, Prime Minister of Luxembourg
• Xavier Bettel, Mayor of Luxembourg City, and his partner[1]
• José Manuel Barroso, President of the European Commission

Approximately 270 citizens of the Grand Duchy of Luxembourg attended the wedding ceremony.[3]