I’m looking to learn more about the history of the Holy Roman Empire. Any recommendations?

An engaging writing style is the most important factor. Secondarily, I’m particularly interested in the eastern border, so it gets bonus points if it doesn’t gloss over that.

My family is from Slovakia, but I know almost nothing about the history of the region. What would be the most interesting period / event to read about?

Can anyone recommend a non-fiction book set in the Middle Ages that features court intrigue? I’m not overly concerned about the specific time, place, or event. The ideal book would be somewhat zoomed-in so that I can familiarize myself with the parties and relationships. I’m also not concerned if the book is accused of glossing over debated specifics for the sake of framing the event and parties in a clear and compelling narrative. Thanks, All!