“House of Gaunt” is just what they called themselves as far as we know; the word “noble” was never used in relation to it. There is no “House Potter”; canonically Potter is just a last name. The Gaunts are descended from the Peverell brothers and Salazar, yes, but you may notice that none of them held noble titles.
“House of Gaunt” is just what they called themselves as far as we know; the word “noble” was never used in relation to it. There is no “House Potter”; canonically Potter is just a last name. The Gaunts are descended from the Peverell brothers and Salazar, yes, but you may notice that none of them held noble titles.