I was doing some research for a suckening fic, and I looked up Shilo’s last name, Bathory (because Google didn’t like Bathroy) and the first result was a Swedish black metal band.
The second result was a Hungarian noblewoman named Elizabeth Bathory, who was alleged to be a serial killer. She also may have allegedly sometimes bitten her victims.
I’m gonna go off on a limb and say that Elizabeth is the name inspo, and the time period when she was alive lines up well enough that might she might be the Queen’s real world counterpart. So like, if you, say, needed a name for the Queen, Elizabeth is certainly an option.