Népességének
Népességének is a Hungarian grammatical form used to express a possessive relationship involving the noun népesség (population) and to mark case in a noun phrase. It results from combining the third-person singular possessive suffix with the dative/genitive suffix -nek, and it translates roughly as “its population’s” or “to/for its population,” depending on the sentence structure.
Morphology and formation: starting from népesség, the third-person possessive suffix -e (with vowel harmony producing népessége,
Usage: népességének typically appears in phrases that describe the population of a given entity or the population
Notes: besides its primary use with népesség, similar formations can occur with other nouns that take possessive
See also: Hungarian possessive suffixes, Hungarian case suffixes, noun phrases with possessives.