Merthur

Merthur is the slash ship between Merlin and Arthur from the BBC Merlin fandom.

Canon
At first, Merlin does not think highly of Arthur, believing him to be a spoiled prince. This is due to their first meeting, where Merlin called out Arthur for bullying another kid; however, this ultimately leads to Merlin being thrown in prison for a day.

Later, Merlin visits The Great Dragon, who has been imprisoned beneath Camelot by Uther Pendragon. From the dragon, Merlin learns of his destiny to assist Arthur in fulfilling his role as the Once and Future King, uniting Albion.

Their friendship begins to grow after Merlin saves Arthur's life from a vengeful witch. Uther, impressed by Merlin's actions, gives him the job of being Arthur's manservant, much to both of their displeasure.

Throughout the series, Merlin protects Arthur from the foes which try to snuff him out before he fulfills his destiny. However, Merlin does much of this in secret since magic is outlawed in Camelot. Due to this, Arthur believes Merlin is rather useless, but he still thinks of him as a good friend. Their bond, for example, if evident in "The Labyrinth of Gedref", where Arthur must pass a trial to save his people from a magical famine and drought. During this test, he and Merlin are sat at a table, on which rests two goblets. One contains poison and the other does not, and one person can only drink from one goblet. Before Merlin can do anything otherwise, Arthur pours both concoctions into one goblet and drinks it all. His willingness to die for Merlin allows Arthur to pass the test.

At the end of the series, Arthur is fatally wounded, and Merlin finally reveals his ability to use magic. Arthur is surprised and somewhat betrayed, but he ultimately accepts Merlin's magic because he understands how much Merlin used it to help him, and Arthur even apologizes for treating Merlin badly. After Arthur dies, Merlin lays him to rest in the Lake of Avalon, awaiting the foretold day when Albion is in need and he will rise once again.

Quotes
"I’ve seen how much [Arthur] needs you. How much you need him. You’re like two sides of the same coin."

- Hunith to Merlin; The Moment of Truth

"Just... Just hold me, please."

- Arthur, to Merlin; Diamond of the Day, part 2

Fanon
Some fans have noticed that Arthur's lips were moving before he began to say "thank you". Many believe that it looked a lot more like he was whispering "I love you", and then saying "thank you" out loud.

On AO3, Merthur is the most written ship for both characters. It is the most written ship in the BBC Merlin tag and the fourth most written in the Arthurian Mythology tag.

Fandom
FAN FICTION
 * Arthur/Merlin tag on FanFiction.Net
 * Arthur/Merlin tag on FanFiction.Net

TUMBLR

WIKIS
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Trivia

 * Although both characters appear in Once Upon A Time, many people do not ship them in that series, due to their limited interactions, and Arthur being evil in the series.
 * The third Tales of Arcadia series arc, Wizards, also has Arthur as a villain. Along with having people of magic being hunted and killed for the powers they hold, like they are in the BBC series, expect for Merlin, Morgana and Merlin's young apprentice Douxie Casperan. Like in the legend that the two characters are based on, Merlin is loyal to Arthur and serves as his advisor and mentor. Merlin had originally planned to make the Amulet of Daylight for his King when it was time for them to fight Gunmar and his Gumm-Gumms at Killahead Bridge, but after certain events forces them to change their plans and enlist the good trolls for help, Arthur has Merlin make the amulet for them instead. After the Time Map shows Merlin the possible changed timeline that has Arthur dead, the elderly wizard tries to stop this from happening (before the Battle of Killahead Bridge could begin). In the end, however, Merlin's battle with Morgana prevented him from saving Arthur when he was killed at the Battle of Killahead Bridge, by the hands of the Arcane Order who later used their dark magic to bring Arthur back to life; so he can serve as their Green Knight. Merlin wasn't aware of this until the Green Knight revealed his true identity to him; before the corrupted Arthur uses his own sword to kill the wizard.
 * In DreamWorks' Shrek the Third, the relationship between its version of Merlin and Arthur is of teacher and student. With Merlin being one of the teachers at Arthur's boarding school, until the wizard's lack of control over his own magic got him fired. When Arthur comes across his former teacher on his journey to the Kingdom of Far, Far Away, he and his traveling party stay at his cottage. After they were attacked the next day, Arthur "convinces" Merlin to help them through his magic by teleporting them to their location.
 * In Disney's 1963  their bond wasn't only of the one that a teacher would share with his young student, but is also of friendship. As 1963 Merlin uses his magic to teach Arthur things through the eyes of the animals he turns both of them into, along with helping Arthur with his chores and shares with him the knowledge of wonderful things that Merlin's visions of the future has allowed him to see. When Arthur became King, he is glad to know that Merlin will be there to help him through it.
 * In Sonic and the Black Knight, its version of Merlin had used forces from the underworld to create his magical illusion of King Arthur to bring peace to a just rule kingdom and its monarch. Merlin's well meaning actions that created both Arthur and his creation's character, however, back fired when Arthur turned into the evil Black Knight after becoming obsessed with the immortality that Excalibur's scabbard grants him and began to use it to plunge their kingdom into chaos and horrors from the underworld. Merlin's granddaughter, Merlina the Wizard, wanted to fix her grandfather's mistake by destroying his corrupted Arthur illusion, but after she learned that Merlin and Arthurs' future actions will being the kingdom to its end, she wanted to use the scabbard's power to ensure that it doesn't happen.
 * Red Shoes and the Seven Dwarfs has its Merlin and Arthur as two of the seven members of the Fearless Seven. Brave hansom warriors who go around Fairy Tale Isle saving kingdoms and princesses as a team, but after they attack a not so pretty Fairy Princess that they mistook for a witch they get cursed for it; and the only way for them to be free of it is to get kissed by a beautiful maiden. After the two met Red Shoes Artur and Merlin began to fight over her, since her kiss would only be able to curse one of them and the others will have to find someone else who'll be willing to kiss them. Arthur didn't like the fact that Merlin was tempted to use a love spell to win Red Shoes's affects, while Merlin wasn't happy with the fact that Arthur manged to convince the others to allow Arthur to get the kiss from Red Shoes, with the promise that he'll help them find their own maidens. In the end Merlin was the one who got turned back to normal, but Arthur seeing Merlin loving Snow White for who she is did help him to except Little Red Ridding Hood's werewolf form as well as the person she is.