An order of Spanish nuns have holed up in their 15th-century convent in a stand-off with the Catholic Church over issues mundane and spiritual. The mundane: The nuns wanted to sell one property to buy an old convent elsewhere but the Vatican blocked the sale. The Spiritual: The nuns have aligned themselves with a far-right priest who adheres to the belief that the current Pope is not legitimate. The World’s Gerry Hadden reports from Barcelona.