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Friendship is Magic • Equestria Girls • Other incarnations
Friendship is Magic character
Biographical information
SpeciesPony  • Alicorn
Real world
Friendship is Magic #18

Dupluna, also known as Princess Luna or Twona, is an Alicorn mare and Princess native to the Mirror Universe.


Where Equestria's Princess Luna became resentful of her sister Princess Celestia and sought to seize sole control of their kingdom, Dupluna became a noble individual opposed to her own sister Fauxlestia's dictatorship. She eventually joined King Sombra in fighting against her, and later befriended the Celestia of the other world and Starswirl the Bearded when they visited the Mirror Universe. Dupluna and Sombra enjoyed many experiences with the two visitors, with the other Celestia taking solace in Dupluna's company after her own sister became Corrupted into Nightmare Moon. Unfortunately, when the other Luna was restored to her former goodness, Dupluna fell to darkness and joined forces with her similarly Corrupted sister.

Together, the two wreaked havoc upon their world from the Castle of Two Sisters, where they were served by royal guards, Kibitz, and their pets Philomena and Tiberius. After causing the ruin of Cloudsdale and other Pegasus cities, Fauxlestia and her sister set their sights on the other world's Equestria. Attacking and injuring her alternate self when the other Celestia came to visit Sombra, Fauxlestia offered her adversary an ultimatum. In exchange for the other Celestia being able to stay with him in his world, he would allow her and Dupluna to travel through the Magic Mirror to the other Celestia's world. Knowing that this would mean their visiting the misery they had brought to his world upon the other Celestia's, Sombra refused, but Fauxlestia and Dupluna persisted.

On their second visit, Fauxlestia and Dupluna encountered the Mane Six of the other world, who attacked the wicked princesses until Sombra intervened. As a message from the other world's Luna explained, harm done to Fauxlestia harmed her counterpart in the other world, leaving Sombra and his new allies unable to fight Fauxlestia directly. Fauxlestia and Dupluna returned to their castle, where Fauxlestia bemoaned not learning more from her counterpart. When Dupluna suggested spying on the Mane Six, Fauxlestia supported the idea, and Dupluna soon returned with news of their plan to encase the pair in crystal so as to not cause harm to their counterparts in the other world.

Refusing to suffer defeat, Fauxlestia hit upon a plan to bring her counterpart back to her world and learn the spell to enter the mirror from her: she attacked her Dupluna in order to injure the LUna from the other world. In so doing, she inadvertently shattered the mirror in the other world, and the two worlds began to merge together. The two Celestias were soon locked in combat as a result, but when the Mane Six tried to use the Elements of Harmony against Fauxlestia, her counterpart was also affected. Refusing to allow the other world's Celestia to be imprisoned, Sombra took the Elements and used them to draw the corruption out of Celestia and Luna and into himself.

Fauxlestia and Dupluna thus became noble-again in Dupluna's case-like their alternate selves, while Sombra became a dark entity like his own counterpart. As the worlds separated and the rift between them began to close, the other Celestia asked Dupluna to "take care of Sombra" for her before returning home.


 V - E - H - DAlicorns
Tales Dazzleglow
Friendship is Magic Princess Cadance (OEL • A-Halter • Manga • Reflections) • Princess Celestia (OEL • Daybreaker • Deviations • Discordverse • Reflections • Nightmare Star • Mirror-Universe Celestia • Mirror-Universe Daybreaker • Princess Solar) • Cozy Glow (Alicorn • Chaos) • Death • Eclipse Destiny • Flurry Heart (OEL) • Princess Gold Lily • Good Fortune Garnet Alicorn • Humble Trixie • Léon • Princess Luna (OEL • Nightmare Moon • Princess Argent • Deviations • Discordverse • Reflections • "The Flying Reindeer" • Mirror-Universe Luna • Mirror-Universe Nightmare Moon • Starry Night Terror) • Prince McIntosh • Queen Parabola • Princess Pinkie Pie • Skyla • Princess Sterling • Trixie (Reflections • Mirror-Universe) • Twilight Sparkle (OEL • Absolem • Boromir • Marey Man • The Princess Diaries • Tweezers • Twilight-chan) • Twilight Sporkle • Hyperthetical alicorns (Princess Sunset Shimmer • King Starswirl) • Alicorns due to error (Princess Erroria • Flash Sentry • Fleur de Lis • Lemon Hearts • Lyra Heartstrings • "Mulberry Flowers" • Neon Lights • Rarity • Rivet • Rose • Steam Roller)
Generation 5 Opaline • Sunny Starscout
Settlements and realms Skyros
Organizations UFO • Four Princesses
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