Hello, I have lived in Hungary long enough now to apply for citizenship and with Brexit, it seems prudent to do so.
This is a long shot but:
I was born in 1949, adopted in 1950 and changed my name in 2004.
Now, the Hungarian authorities apparently demand an original birth certificate, not a copy but I, like many Brits, do not have that. I can get a certified copy with my original name and I can supply an adoption certificate showing that my name became something else at that point and also the original deed poll doc from the name change.
Does anyone know if this paper trail will be sufficient given that Hungarians have little concept of name changes and all seem to have the originals of everything?! They did eventually accept that my deed poll cert was genuine when we changed my name on various docs here.

You should get any important docs such as your birth certificate and title deed notarised. That way, a title deed for example, will have been clarified by the home office; which in turn is acknowledged as official in Hungary because of its foreign part (the apostille). In 2014 I paid £250 for my title deed to be notarised. I then took it to the immigration office in Szeged (Hungary).

Thanks, I'll look into that.

The 'certified copy' that you probably already hold is the only thing that is available to you; that is because the only original is the birth/adoption register itself. The most you could provide is your birth certificate and adoption certificate as issued by the GRO and an original deed poll.

Birth certificate:

Thanks very much, this suggests that I will not be alone in my dilemma and that other Brits may have had to present certified copies rather than 'originals'. So the system may be accustomed to our ways!
Let's hope so.

It is the same for a UK marriage certificate. In the UK, if you have married a Hungarian woman in the UK, you would need to take your 'certified copy' marriage certificate to the Hungarian embassy in London for example before your Hungarian wife could use your surname (have it recognised by Hungarian authorities) and therefore get her new Hungarian passport in your surname.

Yes, thanks. In fact we married here but it was an 'interesting' process to get her name changed here after we both changed our names in the UK!
Thanks for your help

Hi, if you could give a little update when you get to that stage how it is going? I am sure there will be several people interested in the process as very little information can be found on the internet about what the application actually demands.

I most certainly will.