The Spanish protectorate in Morocco was established on 27 November 1912 by a treaty between France and Spain that converted the Spanish sphere of influence into a formal protectorate. The Spanish protectorate consisted of a northern strip of the protectorate on the Mediterranean and a southern part of the protectorate bordering the Spanish Sahara. The northern zone was retroceded to an independent Morocco on 7 April 1956, shortly after France had ceded her protectorate. Spain finally ceded her southern zone through the Treaty of Angra de Cintra around Cintra Bay on 1 April 1958, only after the short Ifni War.