Rylsk

Rylsk was a small Rurikovich appanage centered on the Siverian town of Rylsk in the Seim basin. The Mongols had stormed the town around 1240.

Rylsk passed to Lithuania in the mid-14th century; Prince Fyodor Patrikeevich died in Lithuanian service at the Vorskla in 1399. In 1454 Casimir IV granted Rylsk to the fugitive Ivan Shemyakin. His son Vasily submitted to Ivan III in 1500, but was arrested in 1523, when his appanage was abolished.