Oldenburg as a proper noun refers to a city in Lower Saxony, Germany.

ओल्डेनबर्ग, जर्मनी का एक शहर

English Usage: Oldenburg is known for its historical architecture.

Hindi Usage: ओल्डेनबर्ग अपने ऐतिहासिक वास्तुकला के लिए जाना जाता है।