Count Guillaume de Montgommery

No primary documentation has been found to prove the ancestry of Roger I de Montgomerie.

One theory is that his father was called Guillaume who descended from a Dane/Viking called Gormeric.

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from "Origin and History of the Montgomerys", B.G. de Montgomery 1948.

Gommer had three sons : Guillam, ancestor of the Montgomerys; Bernardus Danus, ancestor of the Dukes of Harcourt; and Sihtric, a Viking chief, described as the grandson of Ingvar Ragnarson (Annals of the Four Masters). Bernardus Danus called Sihtric to his assistance against the King of France (vide p. 28).

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It seems doubtful whether Gormeric's son William already used the name of Montgomery. One knows with certainty, however, that William's grandson Roger bore the name.

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