Bertrand de Fortunesa was a vampire who was at least 400 years old. He turned up at the school in Series 3 with the Praedictum Impaver, a book said to only open for the Chosen One and give him extra powers. After Vlad gets rid of his first 2 tutors (chosen by the Count) he decides to allow Bertrand to stay at the school. In the fourth season, Bertrand comes close to figuring out the identity of the shapeshifter and he intends to tell Vlad. Vlad however is menaced by the shapeshifter (who takes on Bertrand's form), leading Vlad to stake Bertrand, who is blissfully unaware of what's been going on. Vlad later regrets his decision.