Lillelara

"A murdering brute, wasn´t he?"

"You seem to know your history."

"Everyone knows that. Did away with his two little nephews, poor brats. Had them smothered."

"Smothered?" said Grant, interested. "I didn´t know that."

"Smothered with pillows." She banged his own pillows with a fragile vigorous fist, and replaced them with speed and precision.

"Why smothering? Why not poison?" Grant inquired.

"Don´t ask me. I didn´t arrange it."

"Who said they were smothered?"

"My history book at school said it."

"Yes, but whom was the history book quoting?"

"Quoting? It wasn´t qouting anything. It was just giving facts."

"Who smothered them, did it say?"

"A man called Tyrrel. Didn´t you do any history, at school?"

"I attended history lessons. It is not the same thing. Who was Tyrrel?"

"I haven´t the remotest. A friend of Richard´s."

"How did anyone know it was Tyrrel?"

"He confessed."

"Confessed?"

"After he was found guilty, of course. Before he was hanged."

"You mean that this Tyrrel was actually hanged for the murder of the two Princes?"

"Yes, of course. [...]" 

This is brilliant!