Simplify the following text for a Grade 9 native English-speaking person.
Original: However , one of the girls ' governesses , Sofia Ivanovna Tyutcheva , was horrified in 1910 that Rasputin was permitted access to the nursery when the four girls were in their nightgowns and wanted him barred .
Simplified: But in 1910 , Sofia Ivanovna Tyutcheva told other people in the family that Rasputin was allowed to see the four girls when they were wearing their nightgowns .