They can be "made safe" if necessary, in a comfortable jail cell with a locked door made of bars, so easy line of sight, and communication, but they cannot reach you. Translators provided.
I would love a conversation with William the conqueror. He was an incredible man. Or to know what Shakespear was like as a person. Or someone from so far back we don't even know when they lived, like the famous "Wem" of "Wembly" fame - who even was he? What was his life like?