I have designed this map of an eventual restored WRE (Carolingian style) where the different territories had been divided into three 'branches': - Roman (Latin + some Hellenic and other allies) Exarchates: Italy & Africa, Gaul and Spain & Mauritania. Divided into prefectures. PALE YELLOW. - German (or Germanic) stem Duchies: Dania, Jutland, Rugia, Saxony, Thuringia, Frisia, Alamannia, Bavaria, Burgundy, Francia (East & West), Gothia (East & West), Suebia, Vandalia, Lombardy (Greater & Lesser) and Gepidia. Divided into counties. PINK. - Wendic (meaning Germanized -and partially Christianized- Slavic) Marches: Wendland, Pomerania, Lusatia, Silesia, Bohemia, Moravia, Avaria, Carniola and Croatia. GREEN. ADMINISTRATION: Only the Roman branch is under direct rule of the Emperor, through the three Exarchs. The German duchies are mostly independent, but they have a common Diet which elects a common German King, with limited powers. The German King recognizes the overlordship of the Roman Emperor, but has enough power to veto or overthrown undesired Emperors. The Wendic Marches are ruled by German nobles, accordingly to the German Diet. RELIGION: Only the Roman branch is under the effective religious authority of the Pope, while the German nations keep their own national Councils (authority of the Pope is only symbolic). Christian Wends are either tied to any of the German Councils or sometimes the Pope (case of Carniola and Croatia). NEIGHBOURS: The ERE had collaped in 618 and now the Eastern part is divided between the Slavic-Roman Empire (Nestorian), the Greek-Roman States (Orthodox), the Iranian Kingdom (Zoroastrian) and the Caliphate (Muslim). The relation of the WRE with all of them are not good, while relations with Poland and the Anglo-Saxon kingdoms are fine. Bulgars are ITTL confined at IOTL Valachia and Magyars are stopped east of the Carpathians.