Razvan is a member of the Dragonseeker clan. His grandfather, the powerful mage Xavier, imprisoned him for centuries and took control of his body to force him to rape women. The Carpathian people, especially his twin sister Natalya, reviled him for his deeds, not knowing that he was being used and tortured by the dark mage.
After he finally escaped and met his lifemate Ivory, he was very reluctant to claim her because Xavier had placed shadow slivers of himself inside his grandson, allowing him to control him from afar and spy on others through his eyes. Gregori and Ivory were able to remove all of the slivers from Razvan, thus freeing him, but two slivers escaped. We learn in Dark Crime that these slivers have come into the possession of two of the Malinov brothers.