noun
wise ruler; enlightened monarch; benevolent lord
Refers to a historical or legendary ruler known for wisdom, virtue, and good governance. Often used in contrast to 暗君 (dark/foolish ruler).
彼は歴史上の名君として知られている。
He is known as a wise ruler in history.
名君の治世には国が栄えた。
The country prospered under the reign of the enlightened monarch.
Compound of 名 (famous, excellent) and 君 (lord, ruler). The alternate form 明君 uses 明 (bright, enlightened) to emphasize wisdom.