 Complete the following phrase:  Gibbes career as court tutor continued until the February Revolution of 1917, after which the Imperial family was imprisoned in Alexander Palace in Tsarskoe Selo. He was in Saint Petersburg at the time, and immediately after returning to Tsarskoe Selo was proscribed from seeing the family, only being allowed to recover his possessions after the family was transported to the house of the Governor-General of Tobolsk in Siberia. Gibbes voluntarily accompanied the family, arriving in the village in October 1917 shortly before the Provisional Government 