The tide turned when during the battle, The Snow Prince rode in on a 'brilliant steed of pallid white.' It was said that his spear and armor bore the radiant glow of unknown magicka.

Initially, the ancient Nords cut great swaths through the enemy ranks with their superior weapons, and it was said that the slopes of the Moesring 'ran red with Elf blood' The Battle of the Moesring is considered to be the final stand between the Nord and Snow Elf armies. Mereth had already been purged of Snow Elves, so the ancient Nords turned their attention to Solstheim where a great number of skirmishes were said to have taken place. Towards the end of the Merethic Era, the Snow Elves had been hunted to near extinction by the invading armies of Ysgramor. He was a much respected and loved ruler by his people but was killed in battle against the ancient Nords. The Snow Prince was a powerful Snow Elf warrior who lived on the island of Solstheim during the late Merethic Era. 'The Snow Prince is come! Doom is at hand!' ― Snow Elf chant at the Battle of the Moesring

Solstheim tomb of the snow prince