Prince Parni deSangre was the son of Castomira Brangwin and Prince Mycale deSangre of Seleucar. Castomira intended to use make use of his royal blood to gain control over the Staff of Nicator. After his mother's defeat and death, the boy was adopted and raised by his aunt, Catarin deSangre, who gave him the proper upbringing of a possible heir to the throne. The queen hid his Tsol'teth ancestry and the evil intentions of his birth mother from him as best she could. Parni is said to have grown up moody and rebellious but not at all cruel or hateful.
Parni later disappeared mysteriously during a hunting trip, his companions found gruesomely dismembered in the woods. It is unknown what exactly happened that night, but historians say that he made a dramatic emergence centuries later, an appearance which spelled the doom of the Seleucarian Empire.