king vs Ethelred the Unready

king and Ethelred the Unready both are nouns.

Word	Noun	Adjective	Verb	Adverb
king	Yes	No	No	No
Ethelred the Unready	Yes	No	No	No

king (noun)	Ethelred the Unready (noun)
(chess) the weakest but the most important piece	king of the English who succeeded to the throne after his half-brother Edward the Martyr was murdered; he struggled unsuccessfully against the invading Danes (969-1016)
one of the four playing cards in a deck bearing the picture of a king
a checker that has been moved to the opponent's first row where it is promoted to a piece that is free to move either forward or backward
a male sovereign; ruler of a kingdom
a very wealthy or powerful businessman
a male competitor who holds a preeminent position
the husband or widower of a queen
preeminence in a particular category or group or field