Prince Guillaume of Luxembourg and Princess Stephanie attend an official reception at Luxembourg Philharmonie hall for National Day 2018 in Luxembourg, Luxembourg. Princess Stephanie of Luxembourg clutch details as she attends an official reception at Luxembourg Philharmonie hall for National Day 2018 in Luxembourg, Luxembourg. Grand Duchess Maria Teresa of Luxembourg's clutch detail arrives at Luxembourg Philharmonie hall for official reception of National Day 2018 in Luxembourg, Luxembourg Grand Duke Henri of Luxembourg delivers a speech at Luxembourg Philharmonie hall for official reception of National Day 2018 in Luxembourg, Luxembourg. Grand Duchess Maria Teresa of Luxembourg clutch detail attends an official reception at Luxembourg Philharmonie hall for National Day 2018 in Luxembourg, Luxembourg. (L to R) Mars Di Bartolomeo, Grand Duke Henri of Luxembourg, Grand Duchess Maria Teresa of Luxembourg and Luxembourg's Prime Minister Xavier Bettel attend an official reception at Luxembourg Philharmonie hall for National Day 2018 in Luxembourg. (L to R) Mars Di Bartolomeo, Grand Duke Henri of Luxembourg, Grand Duchess Maria Teresa of Luxembourg and Luxembourg's Prime Minister Xavier Bettel attend an official reception at Luxembourg Philharmonie hall for National Day 2018 in Luxembourg. Luxembourg's Prime Minister Xavier Bettel (L), Anise Koltz and Grand Duke Henri of Luxembourg attend an official reception at Luxembourg Philharmonie hall for National Day 2018 in Luxembourg (L-R) Luxembourg's Prime Minister Xavier Bettel, Anise Koltz and Grand Duke Henri of Luxembourg attend an official reception at Luxembourg Philharmonie hall for National Day 2018 in Luxembourg Princess Claire and Prince Felix of Luxembourg attend an official reception at Luxembourg Philharmonie hall for National Day 2018 in Luxembourg Grand Duchess Maria Teresa of Luxembourg attends National Day parade 2018 in Luxembourg (L-R) Prime Minister Xavier Bettel, Prince Guillaume of Luxembourg, Grand Duchess Maria Teresa of Luxembourg, Grand Duke Henri of Luxembourg, Princess Stephanie and Defense Minister Etienne Schneider attend National Day parade 2018 in Luxembourg (L-R) Prime Minister Xavier Bettel, Prince Guillaume of Luxembourg, Grand Duchess Maria Teresa of Luxembourg, Grand Duke Henri of Luxembourg, Princess Stephanie and Defense Minister Etienne Schneider attend National Day parade 2018 in Luxembourg (L-R) Grand Duchess Maria Teresa of Luxembourg, youngest son Prince Sebastien and husband Grand Duke Henri of Luxembourg attend National Day parade 2018 in Luxembourg (L-R) Prince Guillaume of Luxembourg and Grand Duke Henri of Luxembourg attend National Day parade 2018 in Luxembourg Grand Duke Henri of Luxembourg attends National Day parade 2018 in Luxembourg (L-R) Prime Minister Xavier Bettel, Prince Guillaume of Luxembourg, Grand Duchess Maria Teresa of Luxembourg, Grand Duke Henri of Luxembourg, Princess Stephanie and Defense Minister Etienne Schneider attend National Day parade 2018 in Luxembourg Princess Claire of Luxembourg and Prince Felix of Luxembourg pose for photographers before the official dinner for National Day 2018 at the ducal palace in Luxembourg Princess Stephanie of Luxembourg wearing the Turquoise and Diamond Tiara with matching necklace and earrings poses for photographers before the official dinner for National Day 2018 at the Ducal Palace in Luxembourg. Grand Duchess Maria Teresa of Luxembourg and Grand Duke Henri of Luxembourg leave Notre Dame du Luxembourg cathedral after attending Te Deum for National Day 2018 in Luxembourg Grand Duke Henri of Luxembourg attends the official dinner for National Day 2018 at the Ducal Palace in Luxembourg (L-R) Princess Claire, Prince Guillaume of Luxembourg and wife Princess Stephanie leave Notre Dame du Luxembourg cathedral after attending Te Deum for National Day 2018 in Luxembourg Prince Guillaume of Luxembourg and Princess Stephanie leave Notre Dame du Luxembourg cathedral after attending Te Deum for National Day 2018 in Luxembourg (L-R) Prince Louis, Princess Alexandra, Grand Duchess Maria Teresa of Luxembourg and Grand Duke Henri of Luxembourg, Prince Sebastien, Princess Stephanie, Prince Guillaume, Princess Claire and Prince Felix of Luxembourg walk in the streets of Luxembourg City after attending Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg Grand Duchess Maria Teresa of Luxembourg and Grand Duke Henri of Luxembourg, attend the official dinner for National Day 2018 at the ducal palace in Luxembourg Prince Louis of Luxembourg pose for photographers before the official dinner for National Day 2018 at the ducal palace in Luxembourg Princess Alexandra of Luxembourg wearing Aquamarine Bandeau tiara as she poses for photographers before the official dinner for National Day 2018 at the Ducal Palace in Luxembourg Grand Duchess Maria Teresa of Luxembourg wore the gorgeous Belgian Scroll Tiara as she attends the official dinner for National Day 2018 at the Ducal Palace in Luxembourg. (L-R) Princess Claire of Luxembourg and Prince Felix of Luxembourg, Princess Stephanie, Prince Guillaume of Luxembourg, Grand Duchess Maria Teresa of Luxembourg and Grand Duke Henri of Luxembourg pose for photographers before the official dinner for National Day 2018 at the Ducal Palace in Luxembourg Prince Sebastien of Luxembourg poses for photographers before the official dinner for National Day 2018 at the ducal palace in Luxembourg (L-R) Luxembourg's Prince Louis, Princess Claire, Prince Felix, Grand Duchess Maria Teresa, Grand Duke Henri, Princess Stephanie, Prince Guillaume, Princess Alexandra and Prince Sebastien pose for photographers before the official dinner for National Day 2018 at the Ducal Palace in Luxembourg Princess Stephanie and Prince Guillaume of Luxembourg arrive for Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg Princess Claire of Luxembourg wore the Grand Duchess Adélaïde Tiara as she poses for photographers before the official dinner for National Day 2018 at the Ducal Palace in Luxembourg Prince Felix of Luxembourg poses for photographers before the official dinner for National Day 2018 at the ducal palace in Luxembourg (L-R) Luxembourg's Prince Louis, Princess Claire, Prince Felix, Grand Duchess Maria Teresa, Grand Duke Henri, Princess Stephanie, Prince Guillaume, Princess Alexandra and Prince Sebastien pose for photographers before the official dinner for National Day 2018 at the Ducal Palace in Luxembourg Princess Stephanie of Luxembourg's clutch details arrives for Te Deum for National Day 2018 at Notre Dame du Luxembourg Cathedral in Luxembourg Princess Stephanie and Prince Guillaume of Luxembourg arrive for Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg Grand Duchess Maria Teresa of Luxembourg and Grand Duke Henri of Luxembourg arrive for Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg Princess Claire of Luxembourg and Prince Felix of Luxembourg arrive for Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg Princess Claire of Luxembourg and Prince Felix of Luxembourg arrive for Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg (from front L-R) Luxembourg's Grand Duchess Maria Teresa, Grand Duke Henri, Princess Stephanie, Prince Guillaume, Princess Claire, Prince Felix, Prince Sebastien, Princess Alexandra and Prince Louis attend Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg (from front L-R) Luxembourg's Grand Duchess Maria Teresa, Grand Duke Henri, Princess Stephanie, Prince Guillaume, Princess Claire, Prince Felix, Prince Sebastien, Princess Alexandra and Prince Louis attend Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg (L-R) Luxembourg's Princess Claire, Prince Felix, Prince Sebastien, Princess Alexandra and Prince Louis attend Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg Prince Guillaume of Luxembourg and Princess Stephanie leave Notre Dame du Luxembourg cathedral after attending Te Deum for National Day on June 23, 2018, in Luxembourg Grand Duchess Maria Teresa of Luxembourg and Grand Duke Henri of Luxembourg leave Notre Dame du Luxembourg cathedral after attending Te Deum for National Day 2018 in Luxembourg (from front L-R) Luxembourg's Grand Duchess Maria Teresa, Grand Duke Henri, Princess Stephanie, Prince Guillaume, Princess Claire, Prince Felix, Prince Sebastien, Princess Alexandra and Prince Louis attend Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg Grand Duchess Maria Teresa of Luxembourg, Grand Duke Henri of Luxembourg walk in the street of Luxembourg city after attending Te Deum for National Day 2018 at Notre Dame du Luxembourg cathedral in Luxembourg (L-R) Princess Stephanie, Prince Guillaume and Prince Felix of Luxembourg leave Notre Dame du Luxembourg cathedral after attending Te Deum for National Day 2018 in Luxembourg Prince Guillaume of Luxembourg and Princess Stephanie leave Notre Dame du Luxembourg cathedral after attending Te Deum for National Day 2018 in Luxembourg Princess Claire of Luxembourg wore the Grand Duchess Adélaïde Tiara as she poses for photographers before the official dinner for National Day 2018 at the Ducal Palace in Luxembourg Princess Stephanie of Luxembourg wearing the Turquoise and Diamond Tiara with matching necklace and earrings poses for photographers before the official dinner for National Day 2018 at the Ducal Palace in Luxembourg. Princess Alexandra of Luxembourg wearing Aquamarine Bandeau tiara as she poses for photographers before the official dinner for National Day 2018 at the Ducal Palace in Luxembourg Grand Duke Henri of Luxembourg attends the official dinner for National Day 2018 at the ducal palace in Luxembourg.