VATICAN CITY, VATICAN - MARCH 21:  Pope Francis meets Grand Duchess Maria Teresa, Grand Duke Henri of Luxembourg, Guillaume, Hereditary Grand Duke of Luxembourg, Countess Stephanie de Lannoy, Prince Felix of Luxembourg, Claire Margareta Lademacher, Princess Amalia Gabriela Maria Teresa, Prince Louis of Luxembourg, Tessy Antony, Prince Gabriel Michael Louis Ronny, Prince Noah Etienne Guillaume Gabriel Matthias Xavier, Princess Alexandra of Luxembourg, Prince Sebastien of Luxembourg at his private library in the Apostolic Palace on March 21, 2016 in Vatican City, Vatican. During the audience the Royal Family of Luxembourg gave the Holy Father a family portrait, with the Spanish-language dedication, 'To our Pope Francis, with the respectful and filial affection our whole family.' Pope Francis gave the family a medal of the pontificate and copies of his Apostolic Exhortation, Evangelii gaudium, and his Encyclical Letter, Laudato siÕ.  (Photo by Vatican Pool/Getty Images)