"whose idea was that" in German Whose idea was that? Wessen Idee war das? Detailed translations for "whose idea was that" Whose idea was that? Whose idea was that? Wessen Idee war das? Let's go. - Whose idea was that? Source: opensubtitles.org Corpus by OPUS Request review - Wessen Idee war das? Right. Whose idea was that? Source: opensubtitles.org Corpus by OPUS Request review Wessen Idee war das?