The Imperial Romanov family moved in on 30 April 1918 and spent 78 days at the house. This household included Tsar Nicholas Romanov, his wife, the Tsarina Alexandra Fyodorovna of Hesse, their four daughters, their son and heir Alexei, the Tsarevich (crown prince); their court physician Dr. Yevgeny Botkin, chambermaid Anna Demidova, cook Ivan Kharitonov, and valet Alexei Trupp. They occupied four rooms on the upper story of the Ipatiev House, while their guards were housed on the ground floor. From early July, command of this guard was taken over by Yakov Yurovsky, a senior member of the Ural Soviet.