Príncipe Pío (Madrid Metro) Príncipe Pío (Madrid Metro) Príncipe Pío (formerly Estación del Norte) is a multimodal station in Madrid, Spain that services Madrid Metro Line 6, Line 10, and Ramal, Cercanías Madrid commuter rail lines C-1, C-7, and C-10, as well as city buses and intercity and long-distance coaches. It is located next to the River Manzanares between the San Vicente roundabout, the Cuesta de San Vicente, the Paseo de la Florida, and the Paseo del Rey in the district of Moncloa-Aravaca. It is one of the busiest stations in the Madrid Metro and Cercanías systems. Príncipe Pío's train station has three levels.
Madrid system Madrid Agreement were also members of the Madrid Protocol and many of the aspects of the Madrid Agreement ceased to have practical effect). The term 'Madrid Union' can be used to describe those jurisdictions party to either the Agreement or the Protocol (or both). The primary reason the protocol—which has been in operation since 1996 and has 100 members — is more popular than the agreement — which has been in operation for more than 110 years and has 55 members—is that the protocol introduced a number of changes to the Madrid system which significantly enhanced its usefulness to trademark