Ownership of flat after marriage

Why don't you ask a Polish notary? The Polish law protects foreigners married to a Pole. When we bought a flat in Warsaw, the presence of an interpreter was compulsary: They wanted to make sure I could understand every detail of the contract and follow the procedures.

Thanks for quick response. My memory of the framing of the wills is that it was very frustrating, the ideas on how property should be allocated seemed very different from UK. I have some legal knowledge and obviously the law varies from country to country. There was no mention of a compulsory interpreter but then the flat already belonged to my wife.
We are now living in UK and having some difficulty with handling the matter remotely

It's not that easy. Only the assets obtained after the marriage belongs to the couple.
On the other side - even if your wife will explicitly exclude you on the will you still can claim "a compulsory portion of inheritance" (zachówek - can't find a good translation, legitime is close).