A love triangle involving the King of Castile, Alfonso XI, his mistress ('the favourite') Leonora, and her lover Fernando, the story unfolds against the background of the Moorish invasions of Spain and power struggles between church and state. 　　In the Monastery of St James, the monks are making their way to worship. Superior Balthazar (bass), father of the Queen of Castile, ente... (展开全部)