Adélaïde of Paris (Aélis) (c. 850/853 – 10 November 901) was a Frankish queen. She was the second wife of Louis the Stammerer, King of West Francia and mother of Charles the Simple. Adelaide was daughter of the count palatine Adalard of Paris. She was chosen by Charles the Bald, King of Western Francia, to marry his son and heir, Louis the Stammerer, despite the fact that Louis had secretly married Ansgarde of Burgundy against the wishes of his father. Although Louis and Ansgarde already had two children, Louis and Carloman, Charles prevailed upon Pope John VIII, to dissolve the union. This accomplished, Charles married his son to Adelaide in February 875. However, the marriage was called into question because of the close blood-kinship of the pair. When on 7 September 878 the pope crowned