Suar, Volga Bulgaria

Suar (Suwar or Suvar) was a medieval (9th - 14th century) Volga Bulgarian city, the capital of Suar Principality in 948–975.
It was situated at Volga's left tributary Ütäk river's upper stream. In the 10th century it coined its own money. Suar was a political, economical and trade center of Volga Bulgaria. After the Mongol invasion of Volga Bulgaria in 1236 the city lost its importance. It is believed that ruins (fortifications, foundations, ruins of palace) are situated in the present day village of Kuzneçixa, Spassky District, Tatarstan.
Suar is also spelled as "Sugar", but "Suvar" refers also to Dagestani city, which was founded by Sabirs before the 8th century.