Erbreichsplan
has primary title = Holy Roman Empire
has culture group = Latin group or Central Germanic group
not has title =
title : Byzantine Empire
title : Latin Empire
title : Empire of Francia
title : Empire of Italy
not exists title:Empire of Italy

Corpus Juris Civilis
has primary title = Holy Roman Empire
has culture group = Latin group or Central Germanic group
not has title =
title : Byzantine Empire
title : Latin Empire
title : Empire of Francia
title : Empire of Italy
not exists title : Empire of Italy
culture era is Early Medieval

Landfrieden
has primary title = Holy Roman Empire
faith = Catholic
not has title =
title : Byzantine Empire
title : Latin Empire
culture have stem duchies, royal prerogative innovation

Inspire Opus Romanum
has culture group = Latin group or Central Germanic group
must exists title: Holy Roman Empire
must independent ruler
highest held title tier = Duchy
culture era is Early Medieval

Build the Imperial Tombs
has primary title = Holy Roman Empire
faith = Catholic
not has title =
title : Byzantine Empire
title : Latin Empire
culture have Romanesque Style innovation