What is Louis, Duke of Orléans (1703–1752)?
{{Infobox royalty |name=Louis |title=[[Duke of Orléans]]<br>First Prince of the Blood |image=Portrait de Louis, duc d'Orléans (Bgw19 0712).jpg |full name=Louis d'Orléans |caption=Louis by [[Alexis Simon Belle]] held at the Schloss Rastatt |issue-link=#Issue |spouse=[[Margravine Johanna of Baden-Baden|Johanna of Baden-Baden]] |issue=[[Louis Philippe I, Duke of Orléans|Louis Philippe, Duke of Orléans]]<br/>Louise Marie, Mademoiselle |royal house=[[House of Orléans]] |father=[[Philippe, Duke of Orléans, Regent of France]] |mother=[[Françoise Marie de Bourbon]] |birth_date={{Birth date|1703|8|4||df=y}} |birth_place=[[Palace of Versailles]], France |death_date={{Death date and age|1752|2|4|1703|8|4|df=y}} |death_place=Abbey of Sainte Geneviève, Paris, France |burial_place=[[Val-de-Grâce]], Paris, France |religion = [[Roman Catholicism]] |signature = Signature of Louis d'Orléans, Duke of Orléans at the wedding of Louis, Dauphin of France to Marie Thérèse of Spain on 23 February 1745.png }} '''Louis d'Orléans''' (4 August 1703 – 4 February 1752) was the [[Duke of Orléans]] and a ''[[prince du sang]]''. At his father's death, he became the [[First Prince of the Blood]] (''Premier Prince du Sang''). Known as ''Louis le Pieux'' and also as ''Louis le Génovéfain'', Louis was a [[piety|pious]], charitable and cultured prince, who took very little part in the politics of the time. Louis d'Orléans was born at the [[Palace of Versailles]] in 1703 to [[Philippe II, Duke of Orléans]] and his wife, [[Françoise Marie de Bourbon]], the youngest legitimised daughter of [[Louis XIV of France|Louis XIV]] and of his mistress [[Madame de Montespan]]. At his birth, he was given the courtesy title of [[Duke of Chartres]]. He was brought up by his mother and his grandmother, [[Elizabeth Charlotte of the Palatinate]]. Louis was very close to his younger sister [[Louise Élisabeth d'Orléans]]. Upon the death of his father on 2 December 1723, he became [[Duke of Orléans]]. ==Marriage== He married [[Johanna of Baden-Baden]] (1704–1726), th