Ah yes, Albert Einstein.
Him and his first wife.
Then, decades later they got divorced.
Then....he married Elsa Einstein:
Who was his cousin, and not just that, his first cousin! Their mothers were sisters.
Making matters more complicated: their fathers were also cousins.
They did not have any children together, which is probably fortunate as it might have been a bit risky.
Now, Charles Darwin on the other hand.
He also married his first cousin.
Who was, by all accounts, pretty cute.
They ended up having 10 kids together. But there were lots of health problems amongst those kids which required lots of care on her part, in addition to having to care for Charles, whose health failed, at least in part, due to his exposure to parasites during his travels.
But yes—Darwin and Einstein both married their first cousins. You can even see the resemblance a bit….