Yes she had two sisters. Her half sister Olga (the daughter of her mother by her first husband) was about 10 years older than her and her younger sister Svetlana "Lana" was about 4 or 5 years younger.
Yes, she has three: two sisters and one brother.
He has 2 sisters. Claire & Natalie
Raoul yes
yes his brother is Clyde, no sisters though :)
yes natalie and jake
He did not have any sisters. (He did have one brother.)
2 sisters but no brother
he has 4 sisters.
No, but Prince William has one brother.
2 sisters and 1 brother
he had two brother and sisters
He has an older brother but no sisters.