First found in Normandy, where they were formerly seated in the barony of Saint Hilaire de Sancto Hilario. The first of the name was James de Sancto Hilario who held the castle of St.Hilaire about the year 1100. James, who was the son of Harsculf de St.James who also held the castle of St.Hilaire, was the first to adopt the name of his castle for his surname. Saint Hilaire du Harcourt is in Manche in the arrondissement of Mortain, the canton of St. Hilaire du Harcourt.

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More about the hilaire History...

Please remember that this page is only a small extract of our complete history that includes:

• Ancient origin of the name (usually pre-1100)
• Known spelling variations
• Early movement of the family name during the Middle Ages
• Noteworthy bearers from the 1500-1600s
• First settlers to North America
• Notable contemporary bearers of the name
• A description and/or full color picture of the Coat of Arms, Crest, and Motto (where available)

Some of the first settlers of this family name or some of its variants were: Jean St.Hilaire, who settled in New Orleans in 1757; Alexandre Allaire, who settled in New York in 1686; Catherine Allaire, who settled in Carolina in 1695.

For more information on the last name hilaire, the PDF Surname History is available for purchase as well as other products.