Cleopatra VII would be one of these; she’s always depicted as being beautiful, but she was so inbred that she put Charles II of Spain to shame. Just look at this family
treewreath:Cleopatra’s coefficient of inbreeding was a fucking staggering 0.45, so almost half her alleles were probably identical. Charles II’s inbreeding coefficient was a paltry 0.25 and he looked like this, so I leave it to you to ponder how hot Cleopatra would have been exactly:
I don’t understand the graph, how do 3 people make a baby?
Horizontal connected lines indicate siblings, not marital relation
I don’t understand why Ptolomy XII and Cleopatra III are drawn with a different connection to their parents. The local tree looks the same for both, but the lines are drawn differently.
Edit: nevermind, I scrolled down and saw the comment with the better picture.
A high coefficient of inbreeding means you get a higher chance of bad things happening. You can still win the genetic lottery even with bad odds.