Sir Ector

Sir Ector
Sir Ector was the foster father of Arthur as well as the father of Kay.

Fostering Arthur
Merlin drops Arthur off to Ector. Ector raises Arthur with his wife from infancy to the point where he becomes the King of England, alongside Kay.

The Sword in the Stone
Sir Kay, Arthur, and Ector are on their way to a joust. Kay forgets his sword and has Arthur go back to their home to get it. However, Arthur cannot get inside and out of desperation pulls a sword in the churchyard out of a stone. Sir Kay recognizes that this means that he is the destined King of England, and swears loyalty.