It would have been more honest if she had given a short statement and said "Sorry. I am mortified that my dad was involved with the Nazis". Or something like that. But that is the German mentality. They stayed quiet about it ... and they covered up.
I think much worse is that her father himself lied about his connections with the Nazis. He denied everything (but later was proved) - IMO he lied his children too. Therefore maybe Silvia wasn`t sure about... and wanted to trust her father more than others...
Statement would be fine but I am not sure if e.g. Maxima had given one too
And, last but not least, Swedish RF (some of the members) had close relationship to Nazis too (Gustav V. for example), not to mention Swedish iron export to Germany during II. WW... So, why to get excited about her father?
Even after Silvia had all the evidence of her father's history, she tried to whitewash it.
She made it sound like her father had done something brave and saved the life of a jewish factory owner who sold his company in Berlin and moved to Brazil. In reality, Sommerlath took advantage of the situation, when the nazis forced jews to sell their companies. He paid the man, Efim Wechsel, a lot less than the company was worth and Wechsel probably took the lousy deal just to get out alive with his family.
But Silvia tried to make daddy dearest sound like some Oscar Schindler. I don't think that anybody who isn't on the payroll of the court pretend that they believe what she is saying.
I agree completely with you and Miss Marple. As it turns out, Silvia's father was like the art dealers in the nazi era, buying up art collections from jewish germans who had no choice but sell their art for a fraction of its value and save their lives and get out of germany. In my and the international court's opinion, this is the equivalent of theft. Silvia's father was a thief, in other words. Sure it's not her fault at all but she does need to acknowledge it, not lie about it. If she's lying about this, what else is she lying about? My point is, I agree, this just comes across as not very sympathetic on Silvia's part, to say the least.