I think you should think carefully about your project, what topic you are interested in, and why it is relevant to yourself and your course rather than asking to be handed a topic and a bibliography for pursuing it. While our rule does not discourage asking about homework/research assignments it does encourage you to have put the effort in and think long and hard about what you're interested in - if you do your prep. and then come to ask you'll likely get a much richer response.

You're making a good start, but people such as myself will be much more happy to help (I think it would actually be harming you to just hand you sources and a project) if you have demonstrated some more preparation and demonstrated that you are genuinely interested rather than passingly interested - ie. that you are excited by the topic of your choice.

Finally, you haven't actually asked for a more specific time period - medieval Eastern European history does follow the same broad strokes as medieval European history (c.500-c.1500). This isn't true if one focuses on the Byzantine Empire where there is immense continuity with the Roman Empire and which many of the Western-centric chronologies fail to really account for.