This is the 8268th most frequent Russian word.
маслянинского
"Maslyaninskogo" relates to something or someone from Maslyaninsky, a district or area in Russia.
The word 'маслянинского' is used here as an adjective derived from the proper noun 'Маслянино', denoting belonging to or relation to the Maslyaninskiy district.
Деревня Маслянинского района славится своими живописными пейзажами.
The village of the Maslyaninskiy district is renowned for its picturesque landscapes.
Here, 'маслянинского' functions as a descriptive adjective referencing the overall cultural and geographical identity of the region named Maslyaninskiy.
Она читала книгу о традициях Маслянинского края.
She was reading a book about the traditions of the Maslyaninskiy region.
In this sentence, 'маслянинского' specifies the origin of the artifacts, tying them to the Maslyaninskiy district.