Who is the Lord of the Federal Reserve? Or Who does the Fed Lord over?

Great question! The simple answer is The Powers That Be, but we really do not know who they are, which is your question. None of us can really answer it. Another thread you might find interesting is the ongoing discussion in WTF Rockefeller funded Mises? We can guess some things about TPTB, but ultimately they are just guesses, though I reckon Clayton guesses pretty close sometimes.