Now that very long pause, after he had asked King Galahad whether he was happy, makes sense. Lancelot finds himself stifling the urge to throw his glass against the wall.

He looks down, sitting very still for a long moment, then takes another drink.

"I see," he says eventually. His voice is flat, deliberately even. "No-- he took the Grail to a kingdom known as Sarras. There, the folk had fallen to paganism. They converted when they saw the Cup of Christ. His reward was to rule over this peaceful kingdom. He has been at it, I think, for a long while."