Sindragosa

Sindragosa was a secondary antagonist of World of Warcraft: Wrath of the Lich King.

History
Sindragosa was the last consort of Malygos before his fall to insanity. She died in what is now Icecrown, where her body slowly decomposed to nothing but a skeleton, which was eventually frozen in the ice of Northrend.

Wrath of the Lich King
After thousands of years, Sindragosa finally returned as a slave to the hateful Lich King. She burst from the ice and rallied the undead soldiers in the frozen canyon. She then flew off into the distance, presumably to Icecrown Citadel.

She first appeared in-game in a flashback scene in which the player witnesses her resurrection. Her first real appearance did not happen until very later on into the game, shortly after the death of Lord Tyrannus. There, she slaughtered an entire army of Alliance or Horde soldiers (depending on who defeated Tyrannus). She then flew back to Icecrown Citadel, where she held control over the Frostwing Halls. Her final appearance in the game was the final battle between the player and Sindragosa, along with her henchmen - Spinestalker and Rimefang. In the end, the three were defeated and the entrance to the Lich King's personal lair was opened.