<prompt> Pedzisa mutsara unotevera: Kare muzana remakore rechi16, vamwe vemhuri iyi vaishumira vari maCossack. Muna 1551, Ivan the Terrible akatamisa boka rose revarwi veSviyazhsk kumabvazuva kunopa masimba ehondo kunhare itsva yeSvyazhsk nokuda kwehondo yake yokurwisa  <response>: Kazan. Mumwe weSviyazhsk Cossack atamans aiva Alexey Kobyzev, uyo akatungamirira boka reCossack muhondo neChuvashy muna 1552. Hondo yacho yakarasika uye maCossack akanga ane varume 70 vakafa. 