[gcparent]

Yes, explains the redheads in Sicily, including my family.

[j.havenfarm]

And in Portugal. My great great grandfather lived in Portugal and was apparently known as “the Irishman.” Recessive gene popped up from nowhere. Probably need to thank Olaf or Erik from 1000 years before

[Cronos]

The red hair is from Neanderthals, not Celtic or Germanic - which is why the most red-headed nation are the Uralic speaking Mari in what is now Russia

And there are red heads among the Melanesian peoples (the first people out of Africa)