descendants of Paul Ilyinsky (son Grand Duke Dmitri Pavlovich of Russia) and natural son of Alexander II, Prince George Alexandrovich Yuryevsky. However both lines are unable to press their claim to the defunct Russian throne because of their morganatic status. Alexandrovichi line is thus claimed to be represented by Grand Duchess Maria Vladimirovna of Russia with her only child, George Mikhailovich from the House of Hohenzollern. The Grand Duchess claim to the throne is based on a claim that all male lines of Romanov are either extinct, illegitimate, or morganatic. Thus triggering semi-salic succession, as the closest female to the last dynast. Konstantinovichi Branch This branch could be considered the worst affected branch from the World War I and the Russian Civil War. From Konstantin's four sons, two died of natural causes prior to the war while two died in the civil war, Grand Duke Nicholas Konstantinovich of Russia from pneumonia caused by lack of medical care, while Grand Duke Dmitry Konstantinovich of Russia was executed along three other Romanovs by firing squad at the walls of Peter and Paul Fortress. Grand Duke Nicholas himself had two sons, one of whom died in Tashkent fighting in the anti-Bolshevik uprising, while the other son escaped through the way of Persia, leaving behind his son and daughter, Kirill and Natalia who were later adopted into the Androsov family. Kirll and Natalia were the only two Romanov descendants in the male line in the USSR after the Russian Revolution; the rest either fled or were killed. They died without any descendants. Konstantin other son, Grand Duke Konstantin Konstantinovich of Russia, had 6 sons and 2 daughters. His fourth son, Prince Oleg died in battle in 1914. Three of his sons Prince John, Prince Constantine and Prince Igor Constantinovich of Russia, along with their cousin Vladimir Paley, were murdered in a mineshaft near Alapayevsk on 19 July 1918. Two other sons managed to escape but didn't leave a descendant. Only five male members were left in 1920, with the youngest born in 1917. No new member was born since then. Thus this branch died out with the death of Prince Kirill Romanovsky-Iskander in 1992. Nikolavevichi Branch The legitimate male line of this branch is extinct with the death of Prince Dimitri Romanov in 2016. The male line of this branch however is survived by the illegitimate Nikolayev family, descendant of Grand Duke Nicholas Nikolaevich