Arthur but Lancelot glazing

My lady,” he said to the queen, “we don’t know what is
in store, but order some armor brought to me.”
So they brought him handsome and excellent armor
that was made for King Arthur himself. When he had put it
on, he was exceedingly handsome, and there was no knight
in the world on whom armor was so becoming as on
Lancelot.

The Vulgate Cycle