When the original 18 provinces of Castile arose in 1502, they were established according to their votes in the "Cortes". There were no cities in Extremadura with the right of vote, because most of them were property of Salamanca. Due to this, the inhabitants of Plasencia decided to buy the right which they previously held, and asked other important cities such as Alcántara, Badajoz, Cáceres, Mérida and Trujillo to help them. This was the moment in which the province of Extremadura was formed.