Thank you for your proposal ! Yes, I'm still searching may ancestor named "Thomas CODONNIER", as written on his mariage certificate.
He's reported to be born in "Marajouiar" in the hungarian province, in 1771. There is a high probability that this writing may be the french interpretation for Marosujvar (Ocna Mures). He's parents are reported to be "Gauthier CORDONNIER" and "Marie HILLÉ", from the same province.
The name CORDONNIER may be the french translation of their hungarian name, but I don't know. For information, cordonnier is the french translation of shoemaker.
So if you want, and if you can search any information about this family, it will be a great hope for me!
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Wish you a great summer (on holidays may be?),