Yes, you have right, but all this is common facts, which not must be discuss here. I´m originaly plane create mod from Hussites war, but I have trouble with making wagon wall scene, so I decide create mod from late era, with still strong hussites influence. In 1468 start war between Bohemia and Hungary and this conflict have priority for me. I plane only one faction for HRE and because was still lots of free space on the map, then I create 3 factions for HRE.
Btw. I´m study historian from Czech Rep. so discussion about Bohemian-HRE relations and electional system of HRE(Kurfürsten etc.) are pointless...