Carl XVI Gustaf vs Carl XVI Gustav

Carl XVI Gustaf and Carl XVI Gustav both are nouns.

Word	Noun	Adjective	Verb	Adverb
Carl XVI Gustaf	Yes	No	No	No
Carl XVI Gustav	Yes	No	No	No

As nouns, Carl XVI Gustaf and Carl XVI Gustav are synonyms defined as:

Carl XVI Gustaf and Carl XVI Gustav: king of Sweden since 1973 (born 1946)

Other synonyms of Carl XVI Gustaf include Carl XVI Gustaf of Sweden.

Carl XVI Gustaf (noun)	Carl XVI Gustav (noun)
king of Sweden since 1973 (born 1946)	king of Sweden since 1973 (born 1946)