As a long-time player of HIP, I've always taken to doing small personal sub-mods in different areas where I wanted to fill in something not yet fleshed out by the team. I decided I would present some of my suggestions for the region of Southeast Europe, to see if the SWMH team would like to use them as a basis for their own work. If asked, I can provide the evidence for why I've came to each of these conclusions (for a given suggestion).
I will clarify with each suggestion whether there is a given 'proof'/ evidence behind the claim, but I will also make some suggestions based on 'reasonable guesses' in areas where historians have provided some information but nothing concrete. Most likely will colour/format the text differently.
I've implemented pretty much everything I will be posting about in this thread already in a personal sub-mod, and I'd love to share that with the SWMH team, if they'd have it. I will provide screenshots from this mod as a visual aid, alongside some diagrams I've made separately to help. I love seeing screenshots of work done by the HIP team, so here's a teaser!

I was spurred to start with this research by the desire to better represent the Carpathian basin historically than what is presented by vanilla CK2. My research snowballed from there to the surrounding regions. I'm going to post my suggestions grouped in individual posts based on the general medieval state they belong to (be it Byzantine, Bulgarian, or Croatian).
Topics to explore:
Byzantium
Adding/Fleshing out connections of the Amorian dynasty with the existing Byzantine Nobility (much bigger topic than you'd realise!)
Bulgaria
Adding/Fleshing out the poorly represented Bulgarian nobility (South of the Danube). Current setup is ported from vanilla, and very historically inaccurate.
Carpathian Basin
Reworking Pannonian Croatia and the Balaton Principality
Complete revamp of 'Avar' culture, to reflect the thought that it much like the Bulgars to the south, it had taken on a much more South-Slavic character.
Complete overhaul of the existing states/rulers in the region.
Croatia
Adding/Fleshing out the Croatian nobility. Current setup is ported from vanilla, but leaves much to be desired gameplay wise.
Dalmatia
Minor suggestions to Dynasty list to help flesh things out more
Serbia
Minor suggestions to help fix Bosnia
I will clarify with each suggestion whether there is a given 'proof'/ evidence behind the claim, but I will also make some suggestions based on 'reasonable guesses' in areas where historians have provided some information but nothing concrete. Most likely will colour/format the text differently.
I've implemented pretty much everything I will be posting about in this thread already in a personal sub-mod, and I'd love to share that with the SWMH team, if they'd have it. I will provide screenshots from this mod as a visual aid, alongside some diagrams I've made separately to help. I love seeing screenshots of work done by the HIP team, so here's a teaser!
I was spurred to start with this research by the desire to better represent the Carpathian basin historically than what is presented by vanilla CK2. My research snowballed from there to the surrounding regions. I'm going to post my suggestions grouped in individual posts based on the general medieval state they belong to (be it Byzantine, Bulgarian, or Croatian).
Topics to explore:
Byzantium
Adding/Fleshing out connections of the Amorian dynasty with the existing Byzantine Nobility (much bigger topic than you'd realise!)
Bulgaria
Adding/Fleshing out the poorly represented Bulgarian nobility (South of the Danube). Current setup is ported from vanilla, and very historically inaccurate.
Carpathian Basin
Reworking Pannonian Croatia and the Balaton Principality
Complete revamp of 'Avar' culture, to reflect the thought that it much like the Bulgars to the south, it had taken on a much more South-Slavic character.
Complete overhaul of the existing states/rulers in the region.
Croatia
Adding/Fleshing out the Croatian nobility. Current setup is ported from vanilla, but leaves much to be desired gameplay wise.
Dalmatia
Minor suggestions to Dynasty list to help flesh things out more
Serbia
Minor suggestions to help fix Bosnia