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| The wedding of Prince Guillaume, Hereditary Grand Duke of Luxembourg, and Countess Stéphanie de Lannoy of Belgium took place over a two-day period on October 19 and October 20, 2012. A civil ceremony was held on October 19 followed by a Roman Catholic wedding ceremony at Notre-Dame Cathedral in Luxembourg City the next day. The 2012 wedding marked the largest grand ducal event for the Grand Ducal Family of Luxembourg and the country in years. |
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| The reigning Grand Duke Henri of Luxembourg and his consort, the Cuban-born Grand Duchess Maria-Teresa. |
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| Grand Duke Henri at the wedding banquet. |
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| Grand Duke Henri and Hereditary Princess Stephanie at the wedding banquet. |