Niece if it's a female, and nephew if it's a male.
The oldest child.
It's called The Inside Story.
None of the Cimorelli sisters have a child.
She has her sisters child, because she and Eminem adopted her (Alaina) ;-)
No, Olivia has a younger brother called Cade, Claire is an only child.
As far as I know, George has four siblings; three sisters and one brother, but I know he's not the youngest child. His sisters are called Chelsea, Emily and Rosie. His brother is called Luke.
niece or nephew
No. she does not have any borthers or sisters she is the only child
He was an only child, and had no sibling, but did have a wife and son, Penelope and Telemachus.
Harry Potter had no brothers or sisters; he was an only child.
He had no sisters the only family he had as a child was his dad and uncle
No she is an only child.