Left: Ivan Sednev, the footman of the Grand Duchesses with Alexei
Right: Klementy Nagorny, the Tsarevich's sailor nanny (the man on the left, labeled K.H. in Cyrillic)
These men followed the Imperial Family to Ekaterinburg and remained with them in the Ipatiev House until 14/27 May 1918, when they were arrested and taken to prison. On May 31, they were shot by the Bolsheviks. Alexandra Feodorovna recorded in her diary that they did not know why they were taken, but that they had hope of seeing them again. They continually asked for them back and were told by Yurovsky that he would see what he could do. It is likely that the Bolsheviks took these two men because they were young and strong and could have posed a threat to the plans of assassinating the family. Allegedly, Nagorny had had altercations with the guards about their treatment of the family.
"One day when I was passing Ipatiev's house accompanied by Dr. Derevenko and Mr. Gibbes, we saw two carriages drawn up and surrounded by a large number of Red Guards. What was our horror at recognizing in the first Sednev (the valet-de-chambre of the Grand Duchesses) sitting between two guards. Nagorny was going to the second carriage. He was just setting foot on the step with his hand on the side of the carriage when, raising his head, he saw us all standing motionless a few yards from him. For a few seconds he looked fixedly at us, then, without a simple gesture that might have betrayed us, he took his seat. The carriages were driven off, and we saw them turn in the direction of the prison."
Sources: The Last Diary of Tsaritsa Alexandra: 1918, Thirteen Years at the Russian Court by Pierre Gilliard, and The Alexander Palace Time Machine Forum