谁嫁给了Mercedes, Princess of Asturias？

María de las Mercedes, Princess of Asturias (María de las Mercedes de Borbón y Habsburgo-Lorena; 11 September 1880 – 17 October 1904) was the eldest child of King Alfonso XII of Spain and his second wife, Maria Christina of Austria. She was Princess of Asturias, the heiress presumptive to the Crown of Spain, for all 24 years of her life.

Had her younger sibling, unborn at the death of Alfonso XII, been a daughter, Mercedes would have been Queen of Spain. The sibling proved to be a boy, Alfonso XIII, and on his birth in 1886, Mercedes turned out not to be queen. She resumed the position of heiress presumptive, which she held until her own death, and was succeeded in it by her own infant son Alfonso, Alfonso XIII having not yet married and fathered a legitimate child.

Mercedes married in Madrid on 14 February 1901, her second cousin, Prince Carlos of Bourbon-Two Sicilies, a nephew of the King of the then-defunct Kingdom of the Two Sicilies, who was elevated to the rank of Infante of Spain. The marriage was highly controversial due to her father-in-law's ties with the Carlists. She died three years later from complication while giving birth to her third child.

卡洛·玛利亚·弗朗切斯科·德·阿西西·帕斯夸莱·费迪南多·安东尼奥·迪·帕多瓦·弗朗切斯科·迪·保拉·阿方索·安德烈阿斯·阿维利诺·坦克雷迪（義大利語：Carlo Maria Francesco d'Assisi Pasquale Ferdinando Antonio di Padova Francesco de Paola Alfonso Andrea Avelino Tancredi, Principe di Borbone delle Due Sicilie, Infante di Spagna；1870年11月10日—1949年11月11日），在意大利波札諾的格里斯出生。

卡洛斯是兩西西里王子阿方索與妻子瑪麗亞·安東妮埃塔的次子，也是兩西西里國王弗朗切斯科二世的姪子，西班牙前任国王胡安·卡洛斯一世的外祖父。