Vironian was divided into five clans (kilikunda), Maum (in Estonian "Mahu"), Laemund (Lemmu) also known as Pudiviru, Askele, Revele (Rebala), Alentagh (Alutaguse).

According to the Livonian Chronicle of Henry, Vironians believed that Tharapita, a god worshipped by Osilians (the tribe inhabiting Saaremaa) was born in Vironia.

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.

In 1226, The papal legate William of Modena arrived to Vironian stronghold of Tarwanpe and mediated peace between Germans, Danes and Estonians.

The area went into hands of powerful vassals of Danish king, many of which were of local origin, like Dietrich of Kievel (probably 'Kivela' - 'land of stone' in Estonian) who controlled Eastern part of Vironia, where he started to build the stronghold of Narva.