in 1029, King Sancho the Great sought out and was able to convince Íñigo to become the Abbot of a group of monks in a monastery at Oña. The monastery, founded by Sancho's father-in-law, was in need of reform, and he wanted Íñigo to lead the process.
The choice proved an excellent one. Under his ministration, the abbey grew rapidly in numbers and sanctity. Íñigo’s influenced extended far beyond the monastery walls though. He brought unity and accord to communities and individuals who had long been at bitter variance, and he tamed men of violent passions. When a severe drought threatened a total crop failure, God listened to the prayers of Íñigo and let the rains fall in abundance. On another occasion, he is said to have fed a great multitude with three loaves of bread.