Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
HASSARD
As described in historical dictionaries
Patronymica Britannica (1860)
HASSARD. Of Norman extraction. The orthography was originally Hassart, and the extinct dukes of Charante were of the same family. Soon after the Conquest a branch settled in co. Gloucester, ancl afterwards removed into Dorsetshire. The Irish Hassards settled in that country from England, temp. Charles II. B.L.G.
Surname type: Occupational name
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English