NIGHTBRINGER | The Arthurian Encyclopedia

Niece of Lionel de Nantoel

Nanteuil

In the Vulgate MerlinHelena, the lady slain by the Giant of St. Michael’s Mount, is called the niece of ‘Lionel of Nanteuil’.

In most sources, Helen is the niece, wife, or daughter of Hoel of Brittany.


Source
Vulgate Merlin | 1220-1235