Technically yes, she was the クイーン of England. People gave her the name "Bloody Mary" after she massacred thousands of people.
They say that standing in front of a mirror and saying "Bloody Mary" three times makes her appear, but it doesn't. I read somewhere that depending on who あなた are, あなた may have to say it up to a thousand times, and によって that time you're bound to hallucinate.
So is she real? Yes. Is the myth true? Hell-to-the-fucking-no.
Way back in time, there was a gueen named mary. She killed hundreds of people everyday, so they started to call her 'Bloody Mary" Yes there was a person named bloody Mary,but all that horror stuff is all false! Hope that 回答 あなた question!