Mondrian vs Piet Mondrian

Mondrian and Piet Mondrian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mondrian	Yes	No	No	No
Piet Mondrian	Yes	No	No	No

As nouns, Mondrian and Piet Mondrian are synonyms defined as:

Mondrian and Piet Mondrian: Dutch painter whose work (intersecting lines at right angles and planes in primary colors) influenced the development of abstract art (1872-1944)

Mondrian (noun)	Piet Mondrian (noun)
Dutch painter whose work (intersecting lines at right angles and planes in primary colors) influenced the development of abstract art (1872-1944)	Dutch painter whose work (intersecting lines at right angles and planes in primary colors) influenced the development of abstract art (1872-1944)