German phrase
In welcher Sprache findet ~ statt?
Meaning
What language is ___ held in?
When to use it
It asks about event language. This polite wording checks the language used for a planned event.
Example dialogue
In welcher Sprache findet das Meeting morgen statt?
What language will the meeting be held in tomorrow?
Das Meeting findet morgen auf Englisch statt.
The meeting will be held in English tomorrow.