How exactly do you read Medieval Calendars?
Honestly, once you understand a few key concepts, it is not too difficult despite the fact that they are very different from our modern Gregorian style format. So here are some general concepts that you need in order to be able to read these calendars on your own!
Start here:
How are Medieval Calendars Numbered?
Now that you understand the calendars numbering system, move on to:
But What Day of the Week is it?
And finally what started off as my biggest question: