Original sentence: Prince Paul Dmitreevitch Romanovsky-Ilyinsky, Mayor of Palm Beach, Great-grandson of Tsar Alexander II and first cousin of Nicholas II, last Emperor of All the Russias, arguably claimant to the Russian Throne
Edited sentence: Paul Ilyinsky, rightfully: Prince Paul Dmitreevitch Romanovsky-Ilyinsky, Mayor of Palm Beach, Great-grandson of Tsar Alexander II and first cousin of Nicholas II, last Emperor of All the Russias, arguably claimant to the Russian Throne