For this, the Bashkirs were being obliged to pay yasak (tribute) (to start with with furs and honey, afterwards with money). In 1573, the Bashkirs identified it inconvenient to pay for yasak in Kazan and questioned the Russian tsar to construct a city for them on their own land and https://cristianqrsrq.shotblogs.com/the-smart-trick-of-ufa-that-nobody-is-discussing-43890733