In Boxrec the Ledoux vs Criqui fight of 1914 is listed as a French flyweight title bout. It isn't mentioned as a title bout in any of the French newspapers which I have seen. Ledoux is identified as the European bantamweight champion but it isn't stated that he risked his title in this fight. It seems unlikely that it could have been for the flyweight title. The French boxing federation had named Bouzonnie flyweight champion in February 1914 after he had defeated Young Weaver and could hardly have sanctioned a Ledoux vs Criqui bout for the same title a few months later.
By the way, does anybody know the exact result of the Bouzonnie vs Weaver bout, probably held 1914-02-01? I haven't been able to find it.