von Willebrand vs Erik von Willebrand

von Willebrand and Erik von Willebrand both are nouns.

Word	Noun	Adjective	Verb	Adverb
von Willebrand	Yes	No	No	No
Erik von Willebrand	Yes	No	No	No

As nouns, von Willebrand and Erik von Willebrand are synonyms defined as:

von Willebrand and Erik von Willebrand: Finnish physician who first described vascular hemophilia (1870-1949)

Other synonyms of von Willebrand include E. A. von Willebrand, Erik Adolf von Willebrand, Willebrand.

von Willebrand (noun)	Erik von Willebrand (noun)
Finnish physician who first described vascular hemophilia (1870-1949)	Finnish physician who first described vascular hemophilia (1870-1949)