Abraham Ronen

Professor Abraham Ronen (fl. 19th century) was a wizard who worked at Hogwarts School of Witchcraft and Wizardry as the school's Charms Master in the late 19th century, having been educated there prior. In the 1890–1891 school year, his class was joined by a student who started school as a fifth-year, and he also aided them in their final battle against the rebelling goblin Ranrok.