On June 7,1238 by the Treaty of Stensby the Teutonic knights returned the Duchy of Estonia to Valdemar II until in 1346 the lands were sold back to the order and became part of the Ordenstaat.
The Teutonic knights returned the Duchy of Estonia to Valdemar II. This was on June 7,1238 by the Treaty of Stensby. The lands were sold back to the order. This was in 1346. The lands became part of the Ordenstaat. This was in 1346.