My condolences. I would get in touch with the Swiss Patient Organisation Schweizerische Stiftung :: SPO Patientenorganisation, they can provide medical second opinions and legal advise. Alternatively, you could also get in touch with other specialist doctors in such areas to get a second opinion. I’ve done 5-10 minutes of research on PubMed on this topic and it seems that such complications may happen in about 1% of cases during a C-Section. It’s not necessarily a wrong doing of the doctors or medical staff involved, but of course, it could be. But I guess only qualified physicians could really provide guidance and a second opinion, and that’s probably also the same what the court is going to do.
I order to make them liable you would have to prove that they were in violation of regular medical procedures or acted in negligence, and that may not have been the case, maybe it was really just very bad luck. I know that in such a situation one may seek justice and want a culprit or something, but it may be the case there isn’t one to blame, and in such a case a legal battle may be pointless and cause even more damage mentally and financially.
But most of us can’t really judge the situation from the distance that’s why I would seek advice from such an organisation or other doctors, maybe a lawyer specialised in such cases, and based on their estimation decide on whether a legal battle is worth it or not. Maybe they really say yes it seems there was really some wrong doing and that you have chances of winning a legal battle, or they’ll be able to explain you, and maybe convince you that it was really just a bad accident, and in such a case it may really be better to move on as others suggested.