Cosimo de Medici vs Cosimo de' Medici

Cosimo de Medici and Cosimo de' Medici both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cosimo de Medici	Yes	No	No	No
Cosimo de' Medici	Yes	No	No	No

As nouns, Cosimo de Medici and Cosimo de' Medici are synonyms defined as:

Cosimo de Medici and Cosimo de' Medici: Italian financier and statesman and friend of the papal court (1389-1464)

Other synonyms of Cosimo de Medici include Cosimo the Elder.

Cosimo de Medici (noun)	Cosimo de' Medici (noun)
Italian financier and statesman and friend of the papal court (1389-1464)	Italian financier and statesman and friend of the papal court (1389-1464)