 Depicted as the main characters in the centre of the monument their grouping and gestures allude to the fact that Éléonor was instrumental in converting her husband to catholicism.Another important component was the heart of the duke's brother, the national hero Turenne, enclosed in a heart shaped container of gilded silver and carried towards heaven by a youthful angel who rises from a heraldic tower of white marble which links the family name La Tour to the biblical tower of David.Together with some other sculptures outside the chapel (not planned to be made by Le Gros and, in fact, never executed), the iconographic message was the postulation of a royal rank and sovereignty of the family dating back to the 9th century, the same message Cardinal de Bouillon tried to support by commissioning a written history of his ancestry from the historiographer Étienne Baluze, published in 1708 and containing an engraving of the envisaged funeral chapel with an idealised view of Le Gros's monument.