I am a bit confused on Itialian surnames that begin with di and de with a space before the last name. Examples: Robert De Niro, Portia di Rossi, Leonardo DeCaprio (no space after De), and di Medici.
Then there's da Vinci!
Can some please explain why these prefixes are sometimes capitalized and sometimes not? Why the use of an "i" instead of "e" in both cases?
Which is proper...to capitalize or not?
Thanks for any clarification!