Khatun
Khatun lies near the lower Lopasnya and the Oka, in a district once contested by the princes of Moscow and Ryazan. An ancient fortified site on the Lopasnya marks a settlement at the meeting of routes through the Oka country. In the fourteenth century Khatun was one of the districts of the Serpukhov principality, whose lands included the Lopasnya region. Its position near the river crossing placed it on a frontier where princely possessions and claims were repeatedly defined by agreement.