Pronovias Wedding Gown - Size 16

I recently purchased a 2 piece wedding gown at a local Wedding shop. My original receipt did not say who the designer was. The shop changed hands from the time I purchased and the time I picked it up. The new owner tells me she is fairly certain it is a Pronovias. The tag inside does not have a name, but it does say: San Patrick, S.A. The wedding was called off the Tuesday after I picked up the dress, so I will attempt to sell the dress, but I would like to know what kind it is, if anyone can help me. I appreciate your response.