kustavilaisaika

Etymology
🇰🇲, from, from kings Gustav III and Gustav IV, who ruled during the period.

Noun

 * 1)   period in Swedish history characterized by autocratic monarchy, starting with the change of constitution in the year 1772 and ending with the loss of Finland to Russia, which was followed by a constitutional reform in 1809

Usage notes

 * More frequently called or, which is also the term preferred by the historians.