Nah, nah, that was Lucifer who did the ministers. And he also set traps for troubadours and rode a tank while the Blitzkrieg raged and the bodies stank...
When they specifically assassinated Tsar Nicholas in July 1918, it was him, his wife Alexandra, the five Romanov children (including Anastasia), and four members of the Imperial entourage (the court physician, a lady-in-waiting, the head footman, and the head cook). The day after, other members of the Romanov family were executed by being thrown alive down a mine shaft, or shot in the case of one Grand Duke.
But White Russia as a political state wasn't declared until September 1918, so even if the monarchist White Russian faction had won out (and not ALL White Russians were monarchists), the Tsar and a large portion of his immediate heirs and extended family were already dead. There were other survivors and in the 1920s and 1930s a couple of Nicholas' cousins proclaimed themselves head of the near-extinct Russian Royal Family and Emperor-in-Exile, but by then they had absolutely no political power or ability to garner any, and the Soviet had solid control over Russia anyway so there was no way in hell they'd care.