I wouldn't have a clue, as I know very little on genealogical research in Europe.

Start by talking to older members of your family and see what they can tell you about where your family may have lived in the past. Ask to look at old pictures and inquire about people in the pics for names. Contact distant family members and ask questions of them.

Google "European Genealogy" or other combinations. I did and found several sites to start with. Sign up on any bulletin board you may find relevant to European genealogy in the areas you are looking for. I was able to prove Creek Indian ancestry by posting a name on bulletin board one time that someone recognized and then pointed me to a record in another state.

The more you look, the more you will find, so start hitting genealogical sites and they will point you where you need to go.

Bear in mind, political boundaries change. If an ancestor has records in one area, his name may not be found in an area of the same name. We looked for years for an ancestor's estate settlement (for people who die without a will) who settled in Conecuh County Alabama and died on the land he homesteaded. We finally found the settlement in another county. He didn't move, the county line moved!

Happy hunting.

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Best Regards,
JW