The 28 jurisdictions that initially comprised the Province of Cantabria were clear in their intention that all the other jurisdictions that formed the "Party and Baton of the Four Villas of the Coast" should be included in the new province. To this end they set out the steps needed for this to happen as soon as those jurisdictions should request it. They would have to abide by the ordinances, having the same rights and duties as the founders, all on an equal footing. Thus, the following joined in quick succession: the Abbey of Santillana, the Valleys of Tudanca, Polaciones, Herrerías, Castañeda, the Villa of Torrelavega and environs, Val de San Vicente, Valle de Carriedo, Tresviso, and the Pasiegan Villas of La Vega, San Roque and San Pedro, as well as the city of Santander with its abbey.