The gentlemen in the picture below are guards from the last times of Swedish rule (audio guide point 21). A 20,000-strong force of the Russian army besieged Tallinn, and the Swedish army’s army basically had enough will to fight. It so happened, however, that the plague that had spread to the city quickly wreaked enormous devastation, and Sweden was forced to surrender in 1710. Swedish time in Estonia was over, and Russia under Peter the Great was now the new ruler.
The couple of hundred years of tsarist Russia began. After the war ended, the new rulers turned the underground passages into prisons. It is said that the former metropolitan father Arseni (also pictured below), who defied Catherine the Great’s orders, lived in the cells in the tunnels until his death, until 1772. He was buried in St. Nicholas Church on Venekatu, and was later canonized as a saint by the Orthodox Church. (Audio Guide, Section 18)
In 1857, Alexander II ordered the removal of the bastions from the list of Russian fortifications, even though they had been in combat readiness during the Crimean War only a few years earlier. After this, the bastions were transferred to the civil administration, and the park areas around the Old Town today were created on top of them. (Section 15 of the Audio Guide)