Task: Question Understanding
Input (English): Context : After Ermesinda's death, her body was entombed in the monastery of Santa María near the municipality of Cangas de Onís, according to Bishop Sebastián of Salamanca and the Estoria de España (a.k.a. Primera Crónica General. The Cordoban chronicler Ambrosio de Morales identifies this with the monastery of Covadonga. Her husband Alfonso I was buried in the same monastery. 16th-century chronicer Ambrosio de Morales gave the following description of the tomb of King Alfonso I and Ermesinda, located in the Santa Cueva de Covadonga (``Holy Cave of Covadonga''): Their tomb is the one at the head of the church facing the main altar in a small cave. It is carved, in part. It is a smooth stone sarcophagus, whose covering is a single piece of stone, four feet wide at the head and two at the feet, like a coffin, but with a flat rather than a vaulted covering. Its length, twelve feet and three in height. The tomb in the Santa Cueva de Covadonga in which Alfonso and Ermedinda are believed to be buried is engraved with the following epitaph: HERE LIES THE CATHOLIC AND HOLY KING DON ALONSO THE FIRST AND HIS WIFE DOÑA ERMENISINDA SISTER OF DON FAVILA WHOM HE SUCCEDED. THIS KING WON MANY VICTORIES OVER THE MOORS. HE DIED IN CANGAS IN THE YEAR 757. 
Question : What is Ermesinda's spouse's name?
Output (English): spouse