a single tower, the remains of an ancient city on the left bank of the Guadiana, New Castile, Spain. It is called Calatrava la Vieja, in order to distinguish it from Calatrava la Nueva, a convent founded in the neighbourhood by the knights of Calatrava.

Knights of, a military order in Spain, instituted by Sancho III. king of Castile, upon the following occasion. When that prince took the strong fort of Calatrava from the Moors of Andalucia, he gave it to the Templars, who wanting courage to defend it returned it to him again, A.D. 1157. Then Don Raymon, of the order of the Cistercians, accompanied by several persons of high rank, offered to defend the place, which the king thereupon delivered up to them, giving them a charter as the knights of Calatrava. This order increased so much under Alphonso, that the knights desired to have a grand master, who was accord-