The family name is Grimaldi.
Naomi Cambell.
Princess of Monaco's birth name is Marie Alice Heine.
Stephanie Spane's birth name is Stephanie Lynn Panayiotou.
Princess Charlene of Monaco's birth name is Charlene Lynette Wittstock.
Princess Caroline of Monaco's birth name is Caroline Louise Marguerite Grimaldi.
Her full title and name was :- HSH The Princess of Monaco Miss Grace Patricia Kelly
it says her last name in the question
princess peach last name is toadstool
Princess Rosalina's last name is Star.
Princess Kate's last name is Middleton .
Stephanie came from the chiness word:stefiniiie meaning princess :) she is sweet!!!:) Stephanie is Greek, from the name Stephen, meaning Crowned one
it says her last name in the question