Grand Duke Vyacheslav Konstantinovich of Russia, was a Romanov grand duke and the youngest son of Grand Duke Konstantin Nikolayevich of Russia and his wife Princess Alexandra of Saxe-Altenburg. The English form of his first name is Wenceslas. Wikipedia
Born: July 13, 1862, Warsaw, Poland
Died: February 27, 1879 (age 16 years), Saint Petersburg, Russia
Great-grandparents: Paul I of Russia, Maria Feodorovna, Frederick William III of Prussia, and more
Grandparents: Nicholas I of Russia, Alexandra Feodorovna, Duchess Amelia of Württemberg, and more
Uncle: Alexander II of Russia