Constitutional monarchy, Parliamentary with figurehead monarch similar to the UK. Territory of all of Anatolia, including Armenia, Lazica, and Georgia, and all of the Baltics up to the Danube and Sava Rivers, including the Dalmatian coast, and also the entire Crimea, Cyprus, and Crete, as well as Cilicia to Antioch, and an enclave of Tripoli in the East. Close relationship with independent nations of Sicily and the Kingdom of Naples, and a friendly rivalry with an Italian state.
The population is vastly Orthodox Christian, with considerable populations of other Christian sects (Notably Catholics and Assyrians), Muslims, Jews, and Protestants, including Eastern Orthodox-flavor Protestants. The population mostly speaks Greek/Rhomeike, but 1/3 speaks it as a second language, after Slavic, Armenian, Georgian, and other minority languages like Albanian (especially in Hellas).
About 2/3 are ethnic Romans, largely in Anatolia, Thrace, Macedonia, and the Aegean islands, and in urban areas. They are a great power with considerable influence in the Levant and Egypt, and the wider Mediterranean, and a contender for the largest economy in Europe (as well as the largest population). They lag some western European countries in growth and industrialization, but are culturally similar with a mostly secular civil society and openness to the world.
Major political factions align the urban Roman populace with minorities and peripheral regions with a pro-western and secular outlook, against a strong bloc of religious conservatives and rural ethnic Rhomans that are more nationalistic and align with minority nationalist parties to with the aim to create church-connected nation-states.