Velikiye Luki Oblast
On March 10, 1945, Podberezinsky District with the administrative center in the "selo" of Podberezye was established. It included parts of Loknyansky, Kholmsky, and Ploskoshsky Districts. The district was a part of Velikiye Luki Oblast. On October 2, 1957, the district was transferred to Pskov Oblast. On January 14, 1958, the district was abolished and split between Kholmsky, Loknyansky, Velikoluksky, and Ploskoshsky Districts.