It can't be black plague because the pictures really have nothing to do with that. I think nobles playing games/feasting is too vague. I think it would have to be the history of Norman conquest of England. I hope this helps! IGNORE THIS! READ BOTTOM!
Answer: Yes it is very safe. Just make sure that no one is allergic to it, because if so they may go into a sever allergic reaction. Other then that you should be good. Please give me the brainiest answer? Hope this helped :)