pitched battle vs Battle of Pydna

pitched battle and Battle of Pydna both are nouns.

Word	Noun	Adjective	Verb	Adverb
pitched battle	Yes	No	No	No
Battle of Pydna	Yes	No	No	No

pitched battle (noun)	Battle of Pydna (noun)
a fierce battle fought in close combat between troops in predetermined positions at a chosen time and place	a major victory by the Romans over the Macedonians in 168 BC; resulted in the downfall of the ancient Macedonian kingdom