Sacred Haven of Debauchery

Lord is not strictly a title, but a general term for any titled nobleman, so in this context, it is not used.

Hmm, you don't know much about the hierarchy in nobility and forms of address. There's a lot written about it now, and it's all wrong.

Don't be the second Moldy who, out of boredom, latched onto my nickname.

In this case, you can talk about such a translation: "Lord, son of Satan".

Added 23 minutes later
Or "Lord Satanic". That's even better.