Michel de Notredame vs Nostradamus

Michel de Notredame and Nostradamus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Michel de Notredame	Yes	No	No	No
Nostradamus	Yes	No	No	No

As nouns, Michel de Notredame and Nostradamus are synonyms defined as:

Michel de Notredame and Nostradamus: French astrologer who wrote cryptic predictions whose interpretations are still being debated (1503-1566)

Michel de Notredame (noun)	Nostradamus (noun)
French astrologer who wrote cryptic predictions whose interpretations are still being debated (1503-1566)	French astrologer who wrote cryptic predictions whose interpretations are still being debated (1503-1566)