Jezra Wagner

Jezra Wagner (born 399 BC, died 426 BC) is a spectre on Mount Baratak in Barovia. Her expedition up the mountain was doomed by an avalanche, leaving her fellow climbers dead and trapping her in a cavern. There she began freezing to death, but seeing the image of her presumed dead brother Giorggio Wagner shortly before her death. She called out for help, but his image did not give her succor, but rather by a darker power, transforming her into one of the undead.[3]
The menace of Jezra Wagner is not unknown. The Vistani song Regina d'Ghlaccio ("The Ice Queen") describes her awful fate. She is known to have been the subject of a (failed) hunt led by Dr. van Richten.