Danes retaliated , killed several Vironian elders and put Vironians under heavy taxes .
In 1221 , Vironians took part in failed attempt to oust Danes who had built a fortress in the place of modern Tallinn in the neighboring province of Revelia .
Danes retaliated , killed several Vironians elders and put Vironians under heavy taxes .
In 1221 , Vironians took part in failed attempt to oust Danes who had built a fortress in the place of modern Tallinn in the neighboring province of Revelia .