Questão jurídica principal
Whether the parties were coproprietors of parcel no. 3415 despite the land-register entry showing the wife as sole owner.
Decisão extraída
The presumption of the land register had been misapplied; the case had to be sent back for fresh examination of ownership.
Fundamentação extraída
For immovables, the registered ownership is presumed valid under Art. 937 CC; the burden lay on the husband to prove the invalidity of the title. Co-borrowing and payment of mortgage costs by family companies were insufficient by themselves to displace that presumption.