Ktsyn

Ktsyn was a district in the wooded borderlands south-west of Kozelsk. In 1455 King Casimir granted Ktsyn and other districts to Prince Fyodor Vorotynsky, placing the locality within the complicated network of princely possessions on Lithuania’s eastern frontier. After the lands changed hands, Ivan III’s will of 1504 listed Ktsyn among the districts of Kozelsk left to his son Semyon. Its name also marked a section of the forest barrier constructed to protect the southern frontier.