What is Louis Philippe, Duke of Orléans?
{{Infobox royalty |name=Louis Philippe d'Orléans |title=[[Duke of Orléans]] |image=Louis Philippe d'Orléans as Duke of Orléans by a member of the French school.png |caption=Louis Philippe by a member of the French school |full name=Louis Philippe d'Orléans |spouse=[[Louise Henriette de Bourbon]]<br/>[[Madame de Montesson]] |issue=[[Louis Philippe II, Duke of Orléans]]<br/>[[Bathilde d'Orléans|Bathilde, Duchess of Bourbon]] |royal house=[[House of Orléans]] |father=[[Louis d'Orléans, Duke of Orléans]] |issue-link=#First marriage |mother=[[Margravine Johanna of Baden-Baden|Johanna of Baden-Baden]] |birth_date={{Birth date|1725|5|12||df=y}} |birth_place=[[Palace of Versailles]], [[France]] |death_date={{Death date and age|1785|11|18|1725|5|12|df=y}} |death_place=Château de Sainte-Assise à [[Seine-Port]], France |burial_place=[[Val-de-Grâce]], Paris |signature=Louis Philippe d'Orléans signature, 1753.jpg |}} '''Louis Philippe d'Orléans''' (12 May 1725 – 18 November 1785) was [[Duke of Orléans]] and the father of ''[[Louis Philippe II, Duke of Orléans|Philippe Égalité]]''. He greatly augmented the already huge wealth of the [[House of Orléans]]. ==Biography== ''Louis Philippe d'Orléans'' was born at the [[Palace of Versailles]] on 12 May 1725. As the only son of [[Louis d'Orléans, Duke of Orléans]] and his wife [[Margravine Johanna of Baden-Baden|Johanna of Baden-Baden]]. ===First marriage=== In 1743, his paternal grandmother, [[Françoise-Marie de Bourbon]] the formidable Dowager Duchess of Orléans, and [[Louise Élisabeth de Bourbon|Louise Élisabeth, Dowager Princess of Conti]] arranged his marriage to his seventeen-year old cousin, [[Louise Henriette de Bourbon]]. The couple was married on 17 December 1743 at Versailles. After a few months of a passion that surprised everyone at court, the couple started to drift apart as the young Duchess of Chartres began to lead a scandalous life. ===Étiennette Le Marquis=== After the death of Louise Henriette on 9 February 1759, Louis Philippe took as his mistress [[Ét