The Raven Queen was slain during the Monster Hunters campaign by the Vryloka Dracco. The death happened when Dracco grabbed, Tartash and Corrin while touching a slaying stone. The resultant explosion destroyed the Raven Queen’s tower and all lode stones in all the realms. This was the start of the Spell Plague and the formation of Draccorrin
Although she is an original creation for the 4th edition pantheon, Divine Power and the 4th edition Manual of the Planes establish that she was once the mortal consort of the original god of death, Nerull. She overthrew the tyrannical Nerull and claimed his portfolio by absorbing the powers of every tormented soul in his dominion, leading the other deities to revoke her power over deceased souls; hence, she can only claim dominion over death itself, and not over those who have died.
The Raven Queen would later solidify her power base during theWar of Winter, when she demanded the portfolio of winter in exchange for slaying the rebel goddess Khala. The Raven Queen thus joined the ranks of those gods who control the seasons, the others being Corellon (spring), Pelor (summer) and Sehanine (autumn). At some point, the Raven Queen assisted Corellon in his war against Lolth; as a reward, she demanded power over fate, which had previously been in Lolth’s portfolio.
The Raven Queen counts few personal enemies (or friends) among the gods; her most hated foe is Orcus, the Demon Prince of the Undead, who constantly schemes to slay her and take her portfolio. She may have a romantic interest in the coldhearted Archfey known as the Prince of Frost