Hi all,
Thank you for all your replies, but out of curiosity, in your experience of finding such statements recorded on certificates, was it actually on the certificate or within the ledger entry pertaining to the marriage or baptism.
To clarify, in my case, we only became aware of this entry, when organising my mothers funeral, the parish priest went directly to the original baptism entry in the ledger to qualify my mother had been baptised at this church, and low and behold it was written in the margin of the ledger, that her parents were from different religions.
Once again, thank you very much for your interest in this.
Ringading.