Restaurant für Hochzeit in Offenbach

Sehr geehrte Damen und Herren,
We are looking for a restaurant for our family lunch/afternoon drinks for the 18th of October. There will be around 20 people. As our official marriage will take place just before noon we would like to move to a restaurant afterwards. We would like to have a little bit of privacy so a separate room/a quieter corner for around that many people is what we are looking for.