Besides gryffindor, slytherin is the most commonly seen and mentioned hogwarts house in the harry potter franchise — and though slytherin is known for bad wizards, not all.. Slytherin is one of the four houses of the hogwarts school of witchcraft and wizardry in the harry potter series.
You probably know that some of slytherin’s most renowned members include severus snape and bellatrix lestrange.. The slytherin common room was located in the castle's dungeons.