This tomb, which is located in the Royal Pantheon of the Cathedral of Santiago, was traditionally identified with the figure of Fernando II. However, certain stylistic issues have led to frame the piece at a later time, matching with the death of Alfonso IX in 1230, so it is possible that the sculpture attributed to Ferdinand II really corresponds to Alfonso IX.
The lying statue is characterized by its curly hair with a crown, symbol of its royal power, a profiled beard and clothing consisting of a tunic and mantle. It stands out the fact that the character seems to sleep. According to researchers such as Núñez Rodríguez, this could respond to an aspect of medieval thought, which is related to the idea that the king does not die, his death being associated with rest and sleep, rather than with the end of life.