page 99 of 960 of Sir Thomas Malory: Le Morte Darthur: The Definitive Original Text Edition

099:

Merlin predicts Arthur’s fate / future and reminds him to take good care of that scabbard. A damesell of the Lady of the Lake shows up at court. The ladies are ambassadors to the Lady of the Lake (they act sort of like mall Santa’s in this story as being representatives of the Lady of the Lake).