This is the 81st most frequent Turkish word.
düzenlenen
"Organized" or "arranged."
In this sentence, 'düzenlenen' is used to describe 'sergi', specifying that the exhibition had been organized.
Düzenlenen sergiye birçok sanatçı katıldı.
Many artists attended the organized exhibition.
'Düzenlenen' here modifies 'konser', applying the meaning of 'organized in a specific location or context'.
Şehirde düzenlenen konser çok ses getirdi.
The concert held in the city made a significant impact.
Here 'düzenlenen' functions as an adjective describing 'otel', indicating that the hotel is one where an event was organized.