Your character must be a Christian (being an Orthodox ruler is not required (though it is recommended), neither is being of Greek or Italian culture) in possession of the Byzantine Emperor's title and fully control the following 14 duchies to restore the Roman Empire: Latium, Venice, Ferrara, Sicily, Genoa, Capua, Apulia, Thrace, Antioch, Jerusalem, Alexandria, Athens, Tunis and Croatia.
Legacy of Rome (requires Legacy of Rome DLC) - The Roman Empire is created by decision, and replaces the Byzantine Empire. This can be circumvented by giving an older child the honorary title of 'Despot' - they then count as being born in the purple. Children who are born in the purple are placed higher in the line of succession than older siblings who are not.
The term comes from the Purple Chamber of the Imperial Palace, a room traditionally used for the birthing of the children of the Emperor. By default these are:īorn in the Purple (requires Legacy of Rome DLC) - Children born to the Emperor are 'porphyrogennetos' - literally born in the purple.
The de jure kingdom titles within the Roman Empire are the same as for the Byzantine Empire.