World of Warcraft - Invincible

History of Invincible from WoWWiki: Invincible was the steed of Arthas Menethil, both in life and death. He was the skeletal steed that Arthas rode throughout Warcraft III: Reign of Chaos and Warcraft III: The Frozen Throne. Invincible was born to the mare Brightmane on the Balnir Farmstead in Tirisfal Glades, in the winter of the year Stormwind fell. Prince Arthas, then nine years old, was present when he was born, and was given the horse by the Balnir family, who bred horses used by the royal family