Below is an index of residents of Europe. They exist on Earth-616 unless otherwise stated.
Resident Index of Europe
Bruno (Burglar) (Earth-616)
Bruno was a burglar who was shrunk and encased in a crystal ball by a gypsy.
In a remote city in the heart of Europe, Gustave witnessed Dr. Doom turning the skies pitch black using Silver Surfer's powers.
When Bruno came to hide in her shop from the police, she trapped him inside her crystal ball. 
Hans (Mountaineer) (Earth-616)
Hans and his fellow mountaineers witnessed a flying saucer coming down and some alien-looking Inhumans setting up a camp in the woods, before being chased off by a rock slide caused by Gorgon, one of them.
In a hostile nation somewhere in Europe, Miklos and his rebel brigand band attacked Daredevil, but they were easily defeated.
Geophysicist Professor Stromm was found by Dr. Banner in a captive European nation.
Herr Wagner was the founder of a wax museum located in a lonely European village.