Rocroi vs pitched battle

Rocroi and pitched battle both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rocroi	Yes	No	No	No
pitched battle	Yes	No	No	No

Rocroi (noun)	pitched battle (noun)
a battle in the Thirty Years' War (1643); the French defeated the Spanish invaders	a fierce battle fought in close combat between troops in predetermined positions at a chosen time and place