Saint Bruno vs Bruno of Cologne

Saint Bruno and Bruno of Cologne both are nouns.

Word	Noun	Adjective	Verb	Adverb
Saint Bruno	Yes	No	No	No
Bruno of Cologne	Yes	No	No	No

As nouns, Saint Bruno and Bruno of Cologne are synonyms defined as:

Saint Bruno and Bruno of Cologne: (Roman Catholic Church) a French cleric (born in Germany) who founded the Carthusian order in 1084 (1032-1101)

Other synonyms of Saint Bruno include Bruno, St. Bruno.

Saint Bruno (noun)	Bruno of Cologne (noun)
(Roman Catholic Church) a French cleric (born in Germany) who founded the Carthusian order in 1084 (1032-1101)	(Roman Catholic Church) a French cleric (born in Germany) who founded the Carthusian order in 1084 (1032-1101)