Mangold (also Mangoldt, Mangolt) is a German surname, in origin from a given name. It was the name of a noble family of Altenburger, Weißenfels, given for one Manegoldus de Weißenfels, a forefather of the house of Thuringia. The name Mangold is currently most widespread in the southwestern German state of Baden-Württemberg. Given name. (fl. 1260), founder of the house of Weißenfels. Mangold vow (d. 1385), bishop of Constance. Surname. People with the surname include: von Mangoldt. Hans Carl Friedrich von Mangoldt (1854–1925), German mathematician. Mangold.
https://en.wikipedia.org/wiki/Mangold