This might be a silly question, but where can I find lore on the Chalice Dungeons aside from Pthumeru?

I've only recently beaten the game and absolutely fell in love with it, and I personally really enjoy the Preset Chalice Dungeons even if I'm not very far in them, but I'm finding it difficult to find anything lore-wise pertaining to Hintertomb, Loran or Isz. There's a lot about Pthumeru, it's some of the most important stuff in the game, but what about the other three areas? Does anyone know anything about them, or anywhere I can find stuff about them?