 He died in 1783 at the age of 74 and his duties were assumed by his son Mikhail who lived past the age of 87.Zashiversk grew as a marketplace settlement, and its annual fair attracted traders from all over the Far East.In 1786 its organic growth was boosted by establishment of uezd administration; influx of government bureaucrats and their servants temporarily made it a proper town with a city hall, prison, police force of thirty cossacks and a tavern.