Abstract
The right to be forgotten appeared on the internet scene with the judgment of the European Court of Justice on Mario Costeja v. Google Spain (May 2014). Despite the controversy raised by this resolution, the right to be forgotten is actually a new expression of the European system of protection of personal data. The chapter aims to show the development of the right to be forgotten in Spain and, in this process, the relevance of the two main Spanish cases, Mario Costeja v Google Spain and Les Alfacs v Google Spain which represent both the personal aspects and corporate interests in the right to be forgotten.