From the English Wikipedia page 
Grāveri Parish (Latvian: Grāveru pagasts) is an administrative unit of the Aglona Municipality. As of 2013, it has a population of 552 and an area of 65.3 km2. Until 2009, it was a part of the Krāslava District.
Its administrative centre and the largest village is Grāveri.
More information on the Latvian Wikipedia page