Full Name: Zetheron
Died: 1011 (aged 73)
Blood Status: Half-Blood
Zetheron (938-1011) was a half-blood wizard born to the daughter of a wealthy muggle and a wizarding peasant.
He grew to the age of 11, at which point he attended Hogwarts School of Witchcraft and Wizardry in 949 and was sorted into Slytherin. However, he was resented by Salazar Slytherin for his half-blood heritage.
He became Herbology Professor in 966 until 1011 when he died. During his tenure as Herbology Professor he was assisted by a house-elf named Babbly and also taught Merlin in the late 10th Century. He was described by students as a hermit but he was one of Merlin's favorite teachers.
In 1001 he became Head of Slytherin until his death in 1011, only ten years later.