Are any of the royal family heirs left from the last royal family of the Russian Empire?

I know that the Romanovs of Russia were brutally assassinated/murdered by Lenin-indirectly, but directly murdered by the Bolsheviks. But are there any people who have been confirmed as being some type of relation who could reclaim an honorary throne of Russia? (Much as most monarchs are no Longer absolute, but most monarchs are figureheads)