It just took a while for Hugh to become old enough to fulfill the threat.
The story of little saint Hugh became well known through medieval ballad poetry.
Word Origin and History for Hugh
masc. proper name, from O.N.Fr. Hugues, O.Fr. Hue, from a Frank. name meaning "heart, mind," cf. O.H.G. Hugi, related to hugu "mind, soul, thought." Very popular after the Conquest (often in L. form Hugo); the common form was Howe, the nickname form Hudd. Its popularity is attested by the more than 90 surnames formed from it, including Hughes, Howe, Hudson, Hewitt, Hutchins.