Prince of Frost
The Prince of Frost is an Archfey from the World Axis cosmology of Dungeons & Dragons. Created for Dungeons & Dragons 4th edition, he debuted in Dragon Magazine #374. First appearing in the 4e Manual of the Planes, the Prince of Frost is the unofficial ruler of the Winter Court of the fey, and was the first archfey to appear in the Court of Stars article series. Due to this, he has the longest such article in all of 4e, and even has a unique Paragon Path for warlocks sworn to him, called the Long Night Scion.
Originally the Prince of Summer, his heart hardened and he became a bitter misanthrope when his engaged fiancee jilted him for a human lover. He's unaware that the Raven Queen is secretly nursing a crush on him.