The story
- Mandarin · borrowed from洪澤 /洪泽
- English todayHongze
From the Hanyu Pinyin romanization of the Mandarin 洪澤 /洪泽 (Hóngzé), bestowed on the lake by Emperor Yang of Sui in 616 out of pleasure encountering rain after an inspection tour through drought-afflicted areas.
Etymology from Wiktionary, CC BY-SA 4.0.