Analysis: The Curia regia was a historic advisory body during the Middle Ages, successor to the Visigothic Aula regia and responsible for various functions. It could be ordinary or full, depending on the complexity of the case, and was eventually renamed the King's Council. This institution should not be confused with the Roman Curia, which is the governing body of the Catholic Church. The Curia ordinaria and Curia plena were also present in Leon and Castilla during the 11th and 13th centuries, and were attended by members of the third estate. The term "curia" can sometimes refer to an ordinary gathering or meeting of palace officials. The Roman Curia is composed of the Secretariat of State, the dicasteries, and other equal bodies.