Orandaberg:
Could you just clarify. Do you wish to evict your ex-wife from the house, or, which I think is what you mean, do you wish to revoke the power-of-attorney you may have given her at some time in the past.
If you wish to revoke the power of attorne you need to visit the notary’s office (presumably in Spain?) where you signed the power of attorney, and explain that you wish to “revocar el poder”. I am assuming you have copy of the document?
If you have the document in your possession and if you are not now in Spain but in Norway you could contact the Spanish Consulate and consult them on the matter.
In any case, you could also contact the lawyer in Spain who assisted you when purchasing your house in Spain, as s/he could assist you in this matter.
Regards,
Patricia