The focus of the article is the South Russian Youth Union (SRYU) — the organization of Kiev gymnasium pupils, which appeared soon after the February Revolution of 1917. Having united the Kievan youth with monarchist views, in late April 1917 SRYU organized the demonstration, which became, perhaps, the only legal pro-monarch public act during the first months after the abdication of Nicholas II. The article dwells upon the biography of the leader of the Union B. V. Sokolov, the programme of SRYU and its attitude to the Ukranian question. The names of certain high gymnasium pupils-members of the organization are also mentioned. The author of the article pays particular attention to the involvement of SRYU members in the defence of Kiev against Petliura’s troops in late 1918, drawing certain analogies between Kiev gymnasium pupils-monarchists and the characters of M. A. Bulgakov’s “White Guard”.