It is, however, to be noticed that absolute monarchies are confined to the east of Europe and to Asia, Japan being the only established constitutional monarchy east of the Carpathians.
Limited monarchies are (with the exception of Japan) peculiar to Europe, and in these the degree of democratic control may be said to diminish as one passes eastwards from the United Kingdom.
Or federated of distinct self-governing units like Germany (where the units include kingdoms, at least three minor types of monarchies, municipalities and a crown land under a nominated governor), or the United States, where the units are democratic republics.
Whilst Russia, Austria, Prussia and France were becoming powerful monarchies with centralized administration, Poland had remained a weak feudal republic with an elected king chosen under foreign influence and fettered by constitutional restrictions.
The feeling of national unity between north and south would require historical treatment, the existence of rival monarchies would demand an explanation.