Perevitska

Perevitsk was a fortress on the high right bank of the Oka, guarding the northwestern frontier of the Ryazan principality. Its earthworks commanded the river and the approaches to the Ryazan lands. In 1385 Ryazan forces defeated a Muscovite army near Perevitsk after Prince Oleg's attack on Kolomna. The town later served as a princely seat; in 1551 its wooden fortifications were dismantled for use in the rapid construction of Sviyazhsk on the Volga.