national leader vs Ignacy Jan Paderewski

national leader and Ignacy Jan Paderewski both are nouns.

Word	Noun	Adjective	Verb	Adverb
national leader	Yes	No	No	No
Ignacy Jan Paderewski	Yes	No	No	No

national leader (noun)	Ignacy Jan Paderewski (noun)
a person who is a respected leader in national or international affairs	Polish pianist who in 1919 served as the first Prime Minister of independent Poland (1860-1941)