 In July 1219 Erard's cousin, Hervé, Count of Nevers, confirmed a donation Erard had made to the Teutonic Knights, while Erard was at the siege of Damietta.Upon his return, Erard paid homage to Theobald, Count of Champagne and made a donation to the convent of Argensolles, which had been founded by Blanche of Navarre.He was a patron of the trouvère Guiot de Dijon.