"Yet, there was once a king worthy of that name. That king was Arthur. It is paramount disgrace of this evil generation that the name of that great king is no longer spoken aloud except in derision. Arthur! He was the fairest flower of our race, Cymry's most noble son, Lord of the Summer Realm, Pendragon of Britain. He wore God's favour like a purple robe. Hear then, if you will, the tale of a true king."

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You are determined to hate him [Snape], Harry,” said Lupin with a faint smile. “And I understand; with James as your father, with Sirius as your godfather, you have inherited an old prejudice. By all means tell Dumbledore what you have told Arthur and me, but do not expect him to share your view of the matter; do not even expect him to be surprised by what you tell him. It might have been on Dumbledore’s orders that Severus questioned Draco.

— J. K. Rowling