Its interior houses the old circular funeral building with the Martyrium of Sant Eudald (6th century). Sorba is a town that has been populated since Iberian times. It became a hub of inland Catalonia during the late Roman period and was put under Carolingian domination during the last third of the ninth century. At the end of the sixth century, during the Visigothic period, the martyrium of Sant Eudald was built under the old village. Sorba takes its name from the term sub urbe. A cemetery sprang up around the martyrium, with tombs and sarcophagi carved from the rock and covered with flat tegulae. Buildings were erected alongside it following the tradition of the round Roman sepulchral sites. In the Romanesque period, the martyrium became the sanctuary of the church of Santa Maria.