Pied Piper of Hamelin vs fictional character

Pied Piper of Hamelin and fictional character both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pied Piper of Hamelin	Yes	No	No	No
fictional character	Yes	No	No	No

Pied Piper of Hamelin (noun)	fictional character (noun)
the title character in a German folk tale and in a poem by Robert Browning	an imaginary person represented in a work of fiction (play or film or story)