Blimey, the near miss on Auswitz etc.!
Sorry, can't come close to that.
Although family rumour is that an uncle worked as a spook for a while (1950s).
Supposedly GGG-grandfather was beaten & thrown down a well by his cruel tyrant Swiss Obermeister father; upon Obermeister's death GGGg & his mother flitted away in dark of night to America, renouncing family fortune. In USA GGGg became a messenger boy for Ulysseus S. Grant. Later GGGg amassed his own fortune as a successful businessman.
Now I've done enough research to discover most of that was tosh, but it's a nice story.
Lots of people who frittered considerable wealth away in my trees.
One of my Great-Aunts married into a staunch KKK family; decades later her sister (my Gran) had an important role in promoting racial integration within their church.
Another set of GGG-grandparents lost 4 children, age 3-11, to diptheria in the same week in about 1877. My GG-grandmother was a toddler & their only child to survive. (They had about 5 more kids, though).
I AM actually descended from the Mayflower Pilgrims, but that's kind of ordinary. If you believe some of the stuff online I could also trace back to Plantagenets, too (but don't believe any of it).
On DH's side there's a man, the eldest son, who got disowned by his Baptist family (not sure why, but completely written out of all family records down that side); & his son went on to be a very wealthy manufacturer.