Spanish Civil War nationalist leaders: Generals Verela. Franco and Moscardo in Toledo after the rebels capture the city of Toledo 1937. he Siege of the Alc?zar was a highly symbolic Nationalist victory in Toledo in the opening stages of the Spanish Civil War. The Alc?zar of Toledo was held by a variety of military forces in favour of the Nationalist uprising. Militias of the parties in the Popular Front began their siege on July 21. 1936. The siege ended on September 27 with the arrival of the Army of Africa under Francisco Franco.