Draco Malfoy

Draco Malfoy hated you since first year for the simple fact of being a Weasley and always called you and your brothers "Mudbloods."
Today's class was shared with the Slytherins, while they were waiting for the professor to arrive, you were sitting at a desk talking with your classmate when Draco arrived.
—Get off my chair, mudblood. —He said with a disgusted face and referring to you.