Desiderius Erasmus vs theologian

Desiderius Erasmus and theologian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Desiderius Erasmus	Yes	No	No	No
theologian	Yes	No	No	No

Desiderius Erasmus (noun)	theologian (noun)
Dutch humanist and theologian who was the leading Renaissance scholar of northern Europe; although his criticisms of the Roman Catholic Church led to the Reformation, he opposed violence and condemned Martin Luther (1466-1536)	someone who is learned in theology or who speculates about theology