What is the name of the ghost who is the Bloody Baron's former love interest?
Helena Ravenclaw, also known as the Grey Lady
<s>[INST] <<SYS>> Answer as briefly as you can to the following question. You are required to give a one-shot answer: <</SYS>> What is the name of the ghost who is the Bloody Baron's former love interest? [/INST] Helena Ravenclaw, also known as the Grey Lady </s>