Karl Czerny vs Carl Czerny

Karl Czerny and Carl Czerny both are nouns.

Word	Noun	Adjective	Verb	Adverb
Karl Czerny	Yes	No	No	No
Carl Czerny	Yes	No	No	No

As nouns, Karl Czerny and Carl Czerny are synonyms defined as:

Karl Czerny and Carl Czerny: Austrian virtuoso pianist and composer of many works for the piano; studied with Beethoven and was a teacher of Liszt (1791-1857)

Other synonyms of Karl Czerny include Czerny.

Karl Czerny (noun)	Carl Czerny (noun)
Austrian virtuoso pianist and composer of many works for the piano; studied with Beethoven and was a teacher of Liszt (1791-1857)	Austrian virtuoso pianist and composer of many works for the piano; studied with Beethoven and was a teacher of Liszt (1791-1857)