Death by strudel by all accounts.
Sadly not. She made the children drink poison The older ones who apparently realised what was happening - had to comfort the younger ones as they drank the bitter milk, before drinking it themselves. The she and the man of the family either blew their brains out or took cyanide (or both).
There were six children and she refused to allow them to be take out of Germany for safety.
Very grim. No one of the people who built the third reich came to a happy end. And if we are comparing present day people to them, it's because we are kind and we are trying to save them from the same fate.
And - as Baldrick said - blood is hell to shift.