Anton Grigorevich Rubinstein vs Anton Rubenstein

Anton Grigorevich Rubinstein and Anton Rubenstein both are nouns.

Word	Noun	Adjective	Verb	Adverb
Anton Grigorevich Rubinstein	Yes	No	No	No
Anton Rubenstein	Yes	No	No	No

As nouns, Anton Grigorevich Rubinstein and Anton Rubenstein are synonyms defined as:

Anton Grigorevich Rubinstein and Anton Rubenstein: Russian composer and pianist (1829-1894)

Other synonyms of Anton Grigorevich Rubinstein include Anton Gregor Rubinstein, Anton Rubinstein, Rubinstein.

Anton Grigorevich Rubinstein (noun)	Anton Rubenstein (noun)
Russian composer and pianist (1829-1894)	Russian composer and pianist (1829-1894)