My answer is current era regardless, but do we keep our memories and go back, or is it as if we were born in that era? If you went back 500 years with the knowledge that the Super Nintendo and the Internet exist (the two inventions we have that they didn’t have in the 1500s), that would be unpleasant. But if you didn’t know that and were accustomed to getting your entertainment from court jesters and public hangings, I guess that would be slightly less awful.

Like everybody else has said, there’s a lot of things we have now (by which I mean two) that are better than anything there was 500 years ago, even for monarchs. Regardless of whether I knew about those things in monarch form, the version of me that’s making the decision knows, so … nah.