Willebrand vs von Willebrand

Willebrand and von Willebrand both are nouns.

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

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

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

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

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