In summer 1195, a marriage between her and Louis son of Philip II of France was suggested, for an alliance between Richard and Philip, but negotiations failed again. It is said[citation needed] that the Emperor opposed the marriage; and the failure was also a sign that Richard would replace Arthur as heir to England with his only living brother, John. This soon led to a sudden deterioration in relations between Richard and Philip.[4] Another marriage, with Duke Odo of Burgundy, may have been suggested, for in 1198 Philip ordered Odo not marry any relatives of Richard without his permission.[7]