Anton Rubenstein vs Anton Grigorevich Rubinstein

Anton Rubenstein and Anton Grigorevich Rubinstein both are nouns.

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

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

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

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

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