The clause compromise referred to generically to disputes nascent from the contract to which it it inherent it goes interpreted, in lack expression will co co Ntraria, in the sense that fall in the competence arbitral all and only the controversies with due petendi in the contract itself, with exclusion those c c He have, in it, only a assumption historian, like in the case of species in , in presence of the clause compromise contained in a contract of Contract, the actors have proposed action of liability non -contractual, ex art. 1669 cod. civ., deducing serious defects of the property from them purchased.