There were eleven knights in the legendary tale of King Arthur and the Knights of the Round Table. The knights were; Sir Lancelot, Sir Galahad, Sir Gawaine, Sir Gareth, Sir Bors, Sir Percivale, Sir Tristan, Sir Bedivere, Sir Lamorak, Sir Kay and Sir Geraint.
Here is a link that can give you sufficient information about the latter story:- http://www.kingarthursknights.com/ .