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 nièce my niece
Niece in Yiddish is "פּינטשטער" (pintshṭer).
"your are welcome my beautiful niece"
My bother/ sisters child. or my friends niece. it was her niece. I you don't have a niece just never say the words I have a niece.
Niece is translated to Sanskrit as "भागिनी" (Bhāginī).
Your niece's daughter is your grand niece, or, as some would say, your great niece.
Yeğen = niece or nephew (can be used for both) kız yeğen = niece erkek yeğen = nephew
her niece is translated 'sa nièce' (fem.) in French.
In Farsi, niece is "دختر خواهر" (dokhtar-e khâhar).