Sturke, "Queen of the Equinox" (also called the Divine of Seasons), is an ancient dragon, one of the Five Divines. She has an affinity for weather and temperature. Princess Cadance was sent by Luna to attempt to reestablish contact with her, shortly after Rainbow's first encounter with Axan. She is noted as being one of the most "approachable" of the Divines. Historically, she was one of the main allies of the Alicorns in their work to nurture the equestrian population of the world.
Sturke lives somewhere to the west of Equestria, in a kingdom called Ward, where she rules peacefully over the ponies there. Axan describes her as having grown weak from spending time with ponykind.