Alcina Dimitrescu was born into the noble Dimitrescu family sometime before the Great War, and through this ancestry inherited a hereditary blood disease, porphyria cutanea tarda.

At some point in her youth, likely the 1930s, she had a brief music career in the emerging Jazz scene, where she went by the name "Miss D" and played with a band called "The Pallboys". In the aftermath of the Second World War and the abolition of the nobility, Dimitrescu returned to her family's former lands, which had fallen under the control of a neopagan cult worshipping the Black God.

Prior to 1958, at the age of 44, Dimitrescu was lured by the cult leader, Mother Miranda, to a crypt beneath the village cemetery, where she was surgically implanted with a Cadou parasite. The purpose of this experiment was to determine her viability as a candidate who could become host to a parasitic intelligence at a later date. This experiment mutated Alcina's body considerably, granting her regenerative capabilities, retractable claw-like nails, and the ability to transform into a dragon-like monster and back again. Moreover, the parasite halted her aging process, maintaining her appearance perpetually. In spite of these impressive biological changes, the resulting mutation did not nullify her blood disease. As a result, Dimitrescu needed a ready supply of fresh human blood to maintain her health, and was therefore judged by Miranda to be a failure. Upon inhabiting the estate, Dimitrescu took over her family's vineyard and wine-distribution business as a means of supporting herself.

She openly loathes the other three house Lords, particularly Karl Heisenberg, whom she frequently argued with. She privately bemoaned that she was not Miranda's favorite, instead being treated the same as all the others. Despite this, Dimitrescu's alliance with the other houses allowed her to rule her castle with barbarous cruelty, regularly taking in new staff to replace those who had been taken to her dungeon to be killed and drained of blood for sustenance.

Over the next seventy years, Dimitrescu and her daughters systematically consumed the flesh and blood of local peasants and servants alike. The blood of maids was extracted and combined with grapes to create Sanguis Virginis (Latin for "Maiden's Blood"), a traditional Dimitrescu family wine.[9] The female victims, now infected with Mold, lived on as Moroaicǎ and Samcă, while male victims were consumed and then hollowed out to be turned into scarecrows for the castle vineyard.