for knowledge. Using the wedding of the prince's sister that year in France as an opportunity, Thomas obtained permission to take Henri to the Parisian banlieues of Meudon and Issy-les-Moulineaux, then working class slums in which the abbé would volunteer to serve the needy daily, bringing Henri into close contact with day laborers. He would later write that this wretched urban experience profoundly affected his future political outlook and sense of justice, contrasting unfavourably with the deprivation to which he was accustomed in Morocco where, he observed, the poor were at least able to enjoy fresh air, space and sunlight while surrounded by relatives and neighbors who shared a near universal poverty, compared to the depressing grime, crowded conditions and anonymity in which Parisian workers toiled amidst extremes of wealth and deprivation. After a year Thomas, whose health suffered in Morocco, was replaced as Henri's preceptor by abbé Dartein, who accompanied the family to France in 1924, preparing the prince for his collegiate matriculation while they occupied an apartment near his parents in Paris. Henri began a two-year study of mathematics and the sciences at the Catholic University of Louvain in 1924, studying the law for the two years following. His father, having become heir presumptive to the royal claims of the House of Orléans in 1924, betook the family to Europe again but, now banned by law from living openly in France, took up residence at the Manoir d'Anjou, a 15 hectare estate in Woluwe-Saint-Pierre near Brussels, Belgium that had been purchased in 1923 for 75,000 francs. From across the border in France came scholars and veterans of renown to coach Henri for his future role as a royalist leader, including jurist Ernest Perrot, military strategist Général Henri de Gondrecourt and the diplomat Charles Benoist, a member of the Académie des Sciences Morales et Politiques who would serve as his advisor from 1930. Dauphin in pretence In 1926, Henri became the Dauphin of France in pretence when his father became the Orléanist claimant to the defunct throne upon the death of his maternal uncle, Philippe, Duke of Orleans. In 1939, after being refused admission to both the French armed forces and the British armed forces, Henri was allowed to join the French Foreign Legion. As a member of the Legion, he participated in the Second World War and the Algerian War for Independence. Orléanist pretender World War II Henri