Je suis votre nièce
ma nièce my niece
her niece is translated 'sa nièce' (fem.) in French.
My favorite niece is 'ma nièce préférée' in French.
je te souhaite un merveilleux voyage ma niece
"Nieces" is the plural form of "niece" in English. In French, "niece" is translated as "nièce" in singular and "nièces" in plural.
Niece et neveu
'Nephew' is translated 'neveu' and 'niece' is spelled 'nièce' in French.
niece = Nichte
There's actually no such language as Swiss. Switzerland has 4 official languages: German, French, Italian, and Romansh. Please specify which language you want to translate into.
Your niece's daughter is your grand niece, or, as some would say, your great niece.
in spanish niece is sobrina
ma belle petite nièce Sophie Marie