Gamp

Gage was the surname of a wizarding family with most likely at least some pure-blood members.

Wizard(s)

Reynard Gage Husband of Josette Lestrange

Josette Gage Wife of Reynard Gage

Louis Gage son of Reynard and Josette Gage

Mathis Gage son of Reynard and Josette Gage