Interactive Map Renderer based on Crusader Kings 2 by Paradox Interactive
Preview of character screen (randomized sample data):

Preview of leaflet.js map screen (static vector shapes):

Image Copyright Paradox Interactive. All rights reserved. Personal use only.
Ownership of Crusader Kings 2 is expected.
Please check the game's EULA for further information.
https://www.paradoxplaza.com/crusader-kings-ii/CKCK02GSK-MASTER.html
Additional imagery borrowd from the CK2 mod Birthright for non-human races.
Birthright can be found here:
https://www.moddb.com/mods/birthright-a-tsr-dungeons-and-dragons-setting
RPG Attributes and races based on Dungeons & Dragons Systems Reference Document.
For further information check here:
https://dnd.wizards.com/articles/features/systems-reference-document-srd
Stronghold types & classes as well NPC Classes based on Strongholds & Followers by MCDM Productions.
For further information check here:
https://shop.mcdmproductions.com/products/strongholds-followers-pdf