Need suggestion novel(s)/series on medieval setting with good world-building. Prefer peaceful story with less warfares/politics.
I mean, Pillars of the a Earth, almost fits your description. There are no "wars" in the story, and the politics are local and minor to the story, but it is not exactly peaceful. Beautiful story though.
The Bookseller's Tale by Ann Swinfen. You'll end up trying to find the locations on maps of Oxford.
Don Quixote?
Fool by Christopher Moore
This may not be exactly what you're looking for but it's lighthearted and medieval. I picked it up because i was told it was as if The King's Wit from The Way of Kings wrote a book, if you've read that.
It does have politics but they couldnt be described as serious at all. It's funny and lewd and a bit immature but i really enjoyed it.
Have you read Tress of the Emerald Sea, it's written in the style of Hoid telling a story. It's a really fun book.
Actually, this might be a good suggestion for OP too. @hahattpro@lemmy.world . If you like The Princess Bride, you should enjoy the book. Though, most of the book is on the ship, so not sure if it exactly meets your medieval requirement.
I started it but stopped after seeing it was Hoid. I havent read Mistborn yet and Wit was by far my favorite character in Way of Kings. I was ::: spoiler spoiler a bit bummed to find out he was across all the books in the way i did. I dont even know his whole deal yet but i imagine his reveal in the Way of Kings was a big deal and wish i found out that way. :::
I have The Final Empire now and plan on reading it after i finish book 2 of The Witcher.