Errores

The priest reads the prayers in Latin. No Russian Orthodox prayer is ever read in Latin; for Russian Orthodox priests this would be blasphemy. The prayers could be read either in Russian or Slavic.

When Anna takes the carriage she tells the driver to take her to the station. At the time when the action is set (1876) there were several railway stations in Moscow. It would have been necessary to tell the driver to which railway station he should go.