Tsesarevich

Tsesarevich was the title of the heir-apparent to the Emperors of Russia.It should not be confused with Tsarevich,a title which attached to any son of a Russian monarch,in addition to Grand Duke (Velikiy Knyaz) which was also granted to sons of monarchs' sons.

A British horse race,the Cesarewitch,is named for a past Russian crown prince who visited Britain.