Conversation so far:
When did Grigori Rasputin rise to prominence?
Word of Grigori Rasputin's activity and charisma began to spread in Siberia during the early 1900s.
Which names are worth mentioning in Grigori Rasputin's breakthrough when word of Rasputin's activity and charisma began to spread in Siberia during the early 1900s?
Grigori Rasputin won over the father superior of the Seven Lakes Monastery outside Kazan, as well as a local church officials Archimandrite Andrei and Bishop Chrysthanos
Which people did Grigori Rasputin encounter with besides Archimandrite Andrei and Bishop Chrysthanos?
Grigori Rasputin encountered a number of different church leaders, including Archimandrite Feofan, who was the inspector of the theological seminary
What was the inspector of the theological seminary, Archimandrite Feofan's role in Grigori Rasputin's breakthrough?
Archimandrite Feofan was so impressed with Grigori Rasputin that he invited him to stay in his home, and became one of Rasputin's most important and influential friends in St. Petersburg.
Which other people didGrigori Rasputin meet besides Feofan who became one of Rasputin's most important and influential friends in St. Petersburg?
Grigori Rasputin met the Tsar

Question: When did he meet him?
Self-contained rewrite: When did Grigori Rasputin meet with the Tsar?