Великолукская область
On August 1, 1927, Kudeversky District with the administrative center in the "selo" of Kudever was also established. It included parts of former Novorzhevsky Uyezd. The district was a part of Pskov Okrug of Leningrad Oblast. On September 20, 1931, Kudeversky District was abolished and merged into Novorzhevsky District. On March 5, 1935, it was re-established as a part of Velikiye Luki Okrug of Kalinin Oblast; on May 11, 1937, the district was transferred to Opochka Okrug. On August 22, 1944, the district was transferred to Velikiye Luki Oblast. On October 2, 1957, Velikiye Luki Oblast was abolished and Kudeversky District was transferred to Pskov Oblast. On January 14, 1958, Kudeversky District was abolished and split between Bezhanitsky, Novorzhevsky, Opochetsky, and Pustoshkinsky Districts.