Marta Brigit Nilsson vs Birgit Nilsson

Marta Brigit Nilsson and Birgit Nilsson both are nouns.

Word	Noun	Adjective	Verb	Adverb
Marta Brigit Nilsson	Yes	No	No	No
Birgit Nilsson	Yes	No	No	No

As nouns, Marta Brigit Nilsson and Birgit Nilsson are synonyms defined as:

Marta Brigit Nilsson and Birgit Nilsson: Swedish operatic soprano who played Wagnerian roles (born in 1918)

Other synonyms of Marta Brigit Nilsson include Brigit Nilsson, Nilsson.

Marta Brigit Nilsson (noun)	Birgit Nilsson (noun)
Swedish operatic soprano who played Wagnerian roles (born in 1918)	Swedish operatic soprano who played Wagnerian roles (born in 1918)