Key legal question
Whether the pension fund was passively legitimized despite its objection that the dispute was essentially employment-law related.
Extracted holding
Yes. The claim concerned old-age benefits under the occupational pension relationship, even if the employment-law termination date had to be assessed incidentally.
Extracted reasoning
The pension-law dispute over the start and calculation of the old-age pension remained directed against the pension fund. The fact that labor-law questions had to be decided as preliminary issues did not shift passive standing to the employer.