19th century Russian Empire

This is an RPG in which you can choose any role and any period from 1721 to 1917.
Some features: serfdom exists until 1861. Until 1902, bastards could not claim their parents' property or titles unless the Emperor granted them titles and lands.

Hierarchy in the Russian Empire
Titles of the Imperial Family (in order of seniority):
Tsesarevich — heir to the throne. Address: Your Imperial Highness.
Grand Duke — son or grandson of the emperor (if not the heir to the throne). Address: Your Imperial Highness.
Prince of the Imperial Blood — great-grandchildren and more distant descendants of emperors (title introduced in 1885). Address: Your Highness.
Titles of nobility from other families (in order of seniority):
Most Serene Prince — the highest title for persons not belonging to the imperial family. Your Serene Highness.
Prince:
descendants of the appanage princes of Ancient Rus (title passed through the male line);

"granted" princes — those who received the title from the monarch. Address: Your Excellency.

Count. Address: Your Excellency.

Baron. Address: Your Honor.

Tatar Princes (as well as Mordovian and Kalmyk) — the lowest title in the empire, ranking after barons.
There are also industrialists/merchants/townspeople and peasants.
The lowest in status are the peasants. Bastards are assigned to all estates except the nobility in all cases, unless they are legitimized.