Looks like each of the great souls is held by someone from a different place and maybe even a different time. Alonne, Tseldora, Olaphis - were these 'kingdoms' part of Drangleic, or did they predate it?
So far the overall history of the land and the specific game is sparse. It's a bunch of people's personal stories, including your own; most of them cursed and either desperate or oblivious. I'm curious about how much it will come together or remain vague - I've heard that some information isn't actually present until NG+...