Besides the famous Excalibur, Arthur also had a dagger named Carnwennan, and a spear named Rhongomiant. They appear in The Welsh Triads (Trioedd Ynys Prydein) and in Culhwch and Olwen.
4. Arthur's sister
In some tales Arthur also has a sister, Anna, she became queen of Britanny.
3. Merlins role
While the relationship between Merlin and Arthur is well known today, in early texts Merlin never met Arthur and he was counseling Uther Pendragon, Arthur's father.
2. No Lancelot
One of the most famous knights in the court of Arthur, he was a later creation during middle ages by Chretien des Troyes with no basis in the older chronicles or texts.
1. No round table
The round table, its symbolism and the idea of equality is also a creation of the middle ages with no equivalent in the early texts.