Astorga (Spanish: [asˈtoɾɣa] , Estorga in the Leonese dialect of Maragatería) is a municipality and city in Spain, located in the Province of León, within the autonomous community of Castile and León. Situated at the transition between the Páramo Leonés and the Montes de León, it serves as a central hub for the regions of Maragatería, La Cepeda, and the Ribera del Órbigo. The city is the seat of one of Spain's oldest and most extensive dioceses, with jurisdiction over half of the province of León and parts of the provinces of Ourense and Zamora. It is also the head of the judicial district number 5 of the province of León.
Founded as a Roman military camp for the Legio X Gemina in the late 1st century BC, it soon transitioned into a civilian settlement known as Asturica Augusta and became the capital of the Conventus Asturum. It developed as a key communication hub in northwestern Iberia and enjoyed prosperity during the first two centuries of the Common Era due to gold mining, earning the description vrbs magnifica from Pliny the Elder. By the mid-3rd century, it likely became an episcopal see, with Basílides as its first bishop. Following the barbarian invasions, it was part of the Kingdom of the Suebi and was captured by Muslim forces under Tariq in 714, though it was reconquered by the Asturian monarchy later that century. In the late 10th century, it faced repeated Muslim assaults led by Almanzor.
