An earl is the leader of a Dawnish noble house. The title is used for both men and women. Each noble house appoints an earl, to lead the house. Being the earl is an inherently political position; the character is not expected to undertake the kind of glorious actions appropriate for a Dawnish noble - instead their time and energies should be devoted to ensuring that the other members of their house have every possible help to act. In this way the glory of the house is ensured and it is this glory that reflects in turn upon the earl themselves.
An earl who possesses magical powers may style themselves an enchanter. With the resources of an entire noble house to back them up, Enchanters can exert a great deal of influence over the nation. Sometimes an earl becomes an enchanter later in life, studying magic as a means to expand their personal power.
Most enchanters possess at least a basic mastery of ritual magic, focusing on the magic of the Summer Realm (which grants strength to them and their troops) and the Autumn Realm (which deals with prosperity and influence). The primary weakness of ritual magic from the point of view of an enchanter is that it is most powerful when supported by a group of ritual magicians, and Dawnish noble houses tend to shy away from this practice in favour of the more glorious battlefield incantations.
Perhaps most importantly, an enchanter is in a good position to deal with the eternals on a more-or-less equal footing. Enchanters often pursue relationships with Summer eternals, who respect the personal power of a mighty individual more than they do the more diffuse power of a ritual group or lesser magician.