Eustass is used as a family name or surname in Ireland. It is 7 characters long in length.
Family Name / Last Name: Eustass
No. of characters: 7
Origin: Ireland
Meaning:
The form of Eustice. Descendant of Eustace meaning "steadfast".
Variation of the Eustace. From the proper name Eustachius. The family, settled in Ireland under Henry II, were of Norman descent.
The surname Eustass is a variant of Eustace. De Burgo relies upon an inscription on a mounment in the church of St. Sextus, as deriving this family from the Roman martyr St. Eustachius. The founder of the name in Ireland was related to Maurice Fitz-Gerald, from whom he obtained a portion of the barony of Naas. His descendant was Baron of Castle-Martin in 1200.
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