Spanish medieval knight with rare genetic disorder

[Imperial Dave]

https://www.livescience.com/archaeology/i-had-never-seen-a-skull-like-this-before-medieval-spanish-knight-who-died-in-battle-had-a-rare-genetic-condition-study-finds

Weird...

[Nick Harbud]

I worked with a chap whose newborn daughter had this frequently fatal condition.  As I recall, it was very difficult to treat, involving several surgical procedures during her early years.  Slightly strangely, it did not appear in the girl's identical twin sister.

 

[Cantabrigian]

Slightly strangely, it did not appear in the girl's identical twin sister.

You can imagine how excited the medical researchers were about that!

[Jim Webster]

Slightly strangely, it did not appear in the girl's identical twin sister.

You can imagine how excited the medical researchers were about that!

Trust me, I can. It asks all sorts of very interesting questions