He first discovered Merlin's magic in "Lancelot" when he witnessed Merlin use an enchantment on his lance, helping him to defeat the Griffin. Instead of turning him in, Lancelot surprised everyone when he promised to keep Merlin's secret (and he did so until the day he died).
Merlin took up the task himself and brought Lancelot's body to the Lake of Avalon, where he placed it in a boat made of twigs and covered in flowers. The warlock stood over him for a moment, then placed a hand to Lancelot's forehead and incanted a spell to free his soul from Morgana's control.
All 6 of the Knights know about Merlin's magic, but all think they're the only one to know: So the Knights (Arthur, Gwaine, Percival, Elyan, Leon, Lancelot) + Merlin are like,,,, investigating something. Ya know, the norm.
Merlin S01 E05 Lancelot - Lancelot knows about Merlin
Why does Mordred call Merlin Emrys?
Mordred as a young boy keeps calling Merlin "Emrys", which is actually Merlin's name as a Celtic druid and sorcerer. In Welsh, Merlin's full real name is actually Myrddin Wynn Emrys. Myrddin is his first name, Wynn is his family name and Emrys is his druid name.
Arthur was indoctrinated to believe magic led to people becoming power-hungry and evil. All his brushes with magic ranged from annoying to traumatizing. It took the time for him to become practically brothers with Merlin. It took time for him to get to the point where he might slightly accept him for his magic.
He first discovered Merlin's magic in "Lancelot" when he witnessed Merlin use an enchantment on his lance, helping him to defeat the Griffin. Instead of turning him in, Lancelot surprised everyone when he promised to keep Merlin's secret (and he did so until the day he died).
In Camelot, Morgana's spy is discovered by Guinevere, Gaius and Gwaine and she is hanged, leading Gwaine, along with Percival, to hunt down Morgana. However, she overpowers them and magically tortures Gwaine into confessing Arthur's whereabouts; Gwaine dies shortly afterwards in Percival's arms.
Arthur, son of Igraine and Uther Pendragon, is thus Morgan's half-brother, and her full sisters include Mordred's mother, the Queen of Orkney. The young Morgan unhappily marries Urien, with whom she has a son, Yvain.
Why did Merlin not want Arthur to marry Guinevere?
Merlin forbids King Arthur from marrying Guinevere because he can see the future. He knows that she will ultimately be unfaithful with Sir Lancelot and that this in turn will lead to Arthur's incestuous war with Modred which will destroy the kingdom.
Guinevere is childless in most stories. The few exceptions of that include Arthur's son named Loholt or Ilinot in Perlesvaus and Parzival (first mentioned in Erec and Enide).
When Launcelot hears of the death of Arthur and Gawain, he comes to England in haste. He looks for the queen and finds her in a nunnery. For love of Guinevere as much as for remorse he takes on the habit of a priest. Guided by visions, he goes to Almesbury, where he finds Guinevere dead.
Instead of telling her about his powers in order to comfort her about her own, he tried to help without showing he actually understood her fear. As a result, it is Morgous instead of Merlin who teaches Morgana about magic and its purpose, so Morgan's learns to use her power for evil instead of for good.
Unbeknownst to him, Lenore had kept the sword hidden from him but told him that it had been destroyed. After the sword was removed from his body, Merlin lost his magic, though he tried to keep that hidden from others in order to keep up the appearance that he is still very powerful.
Lancelot died twice and both times were sorrowful events for the viewers and poor Merlin. Lancelot's first death was a sacrifice after he made a promise to Gwen to protect Arthur. As soon as everyone learned of his sacrifice, he was deemed the bravest and most noble night of all.
A popular version from the French prose cycles tells of Merlin being bewitched and forever sealed up or killed by his student, the Lady of the Lake, after falling in love with her. Other texts variously describe his retirement, at times supernatural, or death.
Gaius persuaded Nimueh to kill him so that both Merlin and his mother could live. It seemed that Gaius actually did die but Merlin arrived and, enraged by the death of his friend and mentor, slew Nimueh. In killing Nimueh, Merlin restored balance to the world, mastering the power of life and death and reviving Gaius.
One of the sole reasons Morgana turned into a villain was because she was corrupted by Morgause. With Morgana in Morgause's company for a year, the witch successfully brainwashed her sister into believing Uther and Arthur were the real evil.
As Merlin speaks with the Cailleach, Lancelot sacrifices himself to repair the veil. Morgana is furious and wants Agravaine to discover Emrys' identity, but he makes Gaius and Merlin suspicious when he asks Gaius about it.
Why was the TV series Merlin canceled? They always planned it the way it was. It wasn't canceled it just ended. The writers always said they only ever planned for five seasons.
Merlin has always been obsessed with magic, and Arthur's Chaos was a new development she wasn't fully familiar with. Hence, it served as the perfect development for Merlin to fawn over. During Arthur's awakening as the "King of Chaos," Arthur's friend and pet, Cath, revealed its nature.
Some have speculated that they shared something more than friendship, and the producers confirmed this in the commentary of the last episode, "Diamond of the Day part two." Julian Murphy called it, "A love story between two men."
