Sergei Pavlovich Diaghilev vs Sergei Diaghilev

Sergei Pavlovich Diaghilev and Sergei Diaghilev both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sergei Pavlovich Diaghilev	Yes	No	No	No
Sergei Diaghilev	Yes	No	No	No

As nouns, Sergei Pavlovich Diaghilev and Sergei Diaghilev are synonyms defined as:

Sergei Pavlovich Diaghilev and Sergei Diaghilev: Russian ballet impresario who founded the Russian ballet and later introduced it to the West (1872-1929)

Other synonyms of Sergei Pavlovich Diaghilev include Diaghilev.

Sergei Pavlovich Diaghilev (noun)	Sergei Diaghilev (noun)
Russian ballet impresario who founded the Russian ballet and later introduced it to the West (1872-1929)	Russian ballet impresario who founded the Russian ballet and later introduced it to the West (1872-1929)