I understand that in the UK - provided a judge, in divorce/separation proceedings, says he/she has considered the Pre-Nup - he/she can choose to totally ignore it. So in effect it is worthless.

We live in Spain where, upon marriage, one keeps the assets which they have at that time and the other party can never claim against them.

We did do a pre-nup when we got married in Manila 8 years ago. I was not then aware of the law in Spain. I have now, in effect, transferred half of all I have to her.