As none of the sons of Prince Andrew Romanov have male offspring, Rostislav is third in line to inherit their claim to the Russian throne.

Rostislav was educated at Brambletye and Milton Abbey Schools, and at Falmouth University, where he graduated with a BA in fine art.

He is particularly interested in en plein air painting and much of his artwork depicts the Sussex countryside or is inspired by his travels in Russia and elsewhere.

[3] Prince Rostislav belongs to the Mihailovichi branch of the Romanov family as a male line descendant of Grand Duke Michael Nikolaevich of Russia, the youngest son of Emperor Nicholas I.

[8] Prince Rostislav was educated at Brambletye and Milton Abbey Schools, and at Falmouth University where he read Fine Art.

[2] Prince Rostislav visited Russia in 1998 with his parents and siblings to attend the reburial rites of Emperor Nicholas II and his family.

In order to provide for the family, Princess Romanova started a bed and breakfast in an 18th-century mansion in Rye, East Sussex.

[10] Furthermore, the Romanov Family Association has essentially renounced any claims to the Russian throne upon its formation in 1979[citation needed].

In November 2007 Prince Rostislav was featured in a documentary produced by France 3 called "Un nom en héritage, les Romanov" where he was filmed visiting St. Petersburg the former Imperial capital.

[11] In July 2009 accompanying his cousin Prince Dimitri Romanovich, he attended events in St. Petersburg to commemorate the 91st anniversary of the murder of Nicholas II and his family.