No he didn't.
Its claimed that Mordred did. In the battle against Mordred Arthur ran Mordred through with his lance. Dying, Mordred gave Arthur a mortal wound to the head with his sword. Arthur killed Mordred.
Pellinore did in fact (according to those that believe) face Arthur in one to one combat. During this Arthur's sword snapped in two. This was NOT Excalibur buts its predecessor. Merlin, who was watching put Pellinore to sleep to prevent further injury. Merlin warned Arthur NOT to kill Pellinore as his sons would one day live to become 2 of Arthurs greatest allies against Mordred
They caught with swords
Arthur did not kill Lancelot, for Arthur died before Lancelot died.
He and Arthur were having a battle, when Mordred delivered Arthur a fatal blow, and Mordrd also died.
King Arthur killed Mordred at the Battle of Camlann. Arthur was fatally wounded in the battle.
The King, Uther, has died
They caught with swords
Merlin was Arthur's tutor when he was a child in the care of Sir Ector. Merlin was the one who brought Arthur to Sir Ector from Arthur's mother Igraine. Merlin is responsible for educating Arthur to be the king he is supposed to be.
In "The Once and Future King," King Pellinore spends his life in pursuit of the Questing Beast, a mysterious creature that represents a never-ending quest. Their relationship is symbolic of Pellinore's futile pursuit of an unattainable goal, reflecting themes of obsession and the illusiveness of true fulfillment. Pellinore's pursuit of the Questing Beast parallels King Arthur's search for the Holy Grail, highlighting the idea that some quests are meant to remain elusive.
Some are: Morgause, Gawaine, Agravaine, Gareth, Gaheris, Pellinore, Pellinore's son, Pellinore's daughter, Lamarck
The Saxons1.According to lore, King Arthur fought twelve decisive battles against the Saxon invaders.2.Mordred
It is the quest of King Pellinore's family to slay the Questing Beast.
Arthur did not kill Lancelot, for Arthur died before Lancelot died.
Arthur's brother in 'To Kill a Mockingbird' is Nathan Radley.
The arthur kill is a place where the salt water (ocean) and the fresh water meet together!
Arthur Kill Vertical Lift Bridge was created in 1959.
a couple of days ago
Arthur Weasley didn't kill anybody throughout the series. His wife, Molly Weasley, killed Bellatrix Lestrange.