983 CE (presumed)
Kosczecsyku was an ancient 5th generation koldun of the Tzimisce clan and sire of the famous Voivode, Vladimir Rustovich. He is described as an anachronic old man of small stature, with white hair and a moustache.
Kosczecsyku held considerable power over his territory, earning the title of Voivode among his clan. He was also very interested in blood magic and underwent several journeys to obtain knowledge of the various schools of sorcery among the undead. He was allegedly slain by the Shadow Lords in 983 CE.
Rites of the BloodEdit
In the introduction story of Rites of the Blood, Kosczecsyku extracts information from a Telyavelic Tremere of the Sabbat seeking to harvest his thaumaturgical knowledge. It is implied that Kosczecsyku feigned his own death by the hands of the Lupines and tricked his eldest childer to leave him alone. Along with his apprentice and favored childe, Vrisa, the Voivode dedicated himself to the art of fleshcrafting books of thaumaturgical knowledge.
The books are formed out of a single, contiguous whole. A single – still sentient – creature, trapped within its pages. The bones of the captured Blood Sorcerer are discarded, and the remnants of his body become the raw materials for the book. The blood magician's mind is a part of the whole, capable of answering questions by text asked by the reader.
Kosczecsyku possesses a collection that includes a tome on Hermetic Mathematics, a tome on Sielanic Thaumaturgy, another on Setite Sorcery, a Necromantic tome, a Dur-An-Ki tome, an Abyss Mysticism book (probably carved out of one of the childer of Cardinal Monçada) and, finally, a book on infernalism.