>>513792711
>Whats the strangest fully European mixture possible?
Definitely Irish-Baltic or NW Euro/Baltic. Because there's been little gene flow between these regions they're the only part of the European cline with a big gap between them. Half Latvian half Scottish/Dutch people would be genetically quite strange. Also half Basque people and Half Balt half Basque people.

Pic related, a half English half Latvian man.