Was Horace Slughorn a student at Hogwarts?

Horace with Harry Potter, a future student and Slug Club member. Slughorn was not able to hide forever, though, as he discovered one evening in the summer of 1996 when Albus Dumbledore and Harry Potter came to call in the Muggle village Budleigh Babberton. read more

Professor Horace E. F. Slughorn was the Potions master and Head of Slytherin House at Hogwarts School of Witchcraft and Wizardry. He was Potions Professor for over fifty years and Head of Slytherin before retiring in 1981. read more

Horace Slughorn didn't seem to think much of Arthur Weasley, believing he wasn't a"highflier" or powerfully, gifted wizard while teaching him at Hogwarts, despite Arthur being pure-blooded, choosing to favour students who were magically talented and had strong connected with other powerful, talented wizards. read more