Wait, what does Queen Maxima's father have to do with Trump at a NATO summit? You're mixing up completely different topics here.
If you're talking about Jorge Zorreguieta and Argentina's Dirty War - yeah, he was Agriculture Secretary under the junta. "Only knowing about" 30k disappearances is still complicity in genocide.
But this seems like a random tangent unless there's some connection I'm missing to the NATO photo?