Hiallt (also Hialt and Healthene) was a norseman active around the year 920. He is credited with founding the village of Hauteville (same as Hauteville-la-Guichard...

(1098). The traditional account of the family's origin traces them back to Hiallt, a 10th-century Norseman who settled in the Cotentin Peninsula and founded...

Helt[us] found in Heltvilla, modern Héauville. Alternatively, the eponymous Hiallt may be legendary: Hauteville (Altavilla) means simply "high estate". Of...