Yanzhou is an old administrative region in Shandong.
Tips
history
兖 has almost no standalone use today. It survives chiefly in 兖州, a district of Jining in Shandong, and as the name of one of the legendary Nine Provinces (九州) listed in the ancient 禹贡 geography.
register
Classical / proper-noun only — you meet 兖 in old geography and place names, not in everyday speech.
The top is written like 六 but carries no 'six' meaning — it is a stylized cap shape. Indexed under Kangxi radical 儿 (legs) by tradition; the radical is the bottom element, not visibly meaningful in the modern form.
