That’s a unique time period.
I’m excited for you, but I bet it does require a lot of research.
When I wrote my gladiator books, I had my heroine wake up and want something to drink. But in late Republican Rome what would she have had (I kinda assumed wine) But as a Patrician, I found some documents that said in my time period she might not have. Water? Juice of some kind? After HOURS of going through books, looking at website, watching shows that discussed the foods of Ancient Rome, I landed on water mixed with vinegar. Ugh. But then I had the knowledge…
The series takes place in 12 century France which makes for a lot of research.