From the official Sir Differel Van Helsing website:
About the Director -- Important information on Sir Differel, including links to an official biography and magazine articles.
Sir Differel Van Helsing inherited her position as Director of the Caerleon Order from her father, rather than being appointed, but for all that, she has proven herself to be the ideal person for the role, despite being handicapped by her gender. By tradition, the leaders of high-level government agencies in the United Kingdom had always been male aristocrats, but she broke that mold, mostly because of her command of Vlad Drakulya. What follows is information gleaned from her official dossier at the Order.