Under what name did the period of Anna Ioannovna’s reign go down in history?

The answer is Bironovschina. This term was formed from the surname of the favorite of the empress who ruled from 1730 to 1740. Ernst Johann Biron found himself on Russian territory immediately after Anna Ioannovna was invited here by the Supreme Privy Council to govern the state. Often, the two of them are accused of organizing the political dominance of foreigners in the country. After the empress died in 1740, her favorite for a short period of time held the regency over the infant emperor John VI Antonovich.