"Which is that the possessor of the wand must capture it from its previous owner, if he is to be truly master of it," said Xenophilius. "Surely you have heard of the way the wand came to Egbert the Egregious, after his slaughter of Emeric the Evil? ... ..."
Harry Potter and the Deathly Hallows
I think Egbert and Emeric are persons' names, but I'm not sure of "the Egregious" and "the Evil". Are they their nicknames or something?