Seven Deadly Sins

The Seven Deadly Sins (七つの大罪 Nanatsu no Taizai) was the strongest and cruelest order of knights in the kingdom of Britannia formed by brutal criminals who carved symbols of the seven beasts onto their body. They are currently branded as traitors of Britannia.

Background
The group, which was originally an order of knights serving the kingdom of Britannia, became branded as traitors and villains due to being framed for assassinating Zaratras, the Great Holy Knight. It is suspected that one of the members in the Seven Deadly Sins could be a traitor who helped plot the trickery. Each of them owns a sacred treasure, which were entrusted to them by King Leoneth when the group was formed; Meliodas, Diane and Ban, however, sold his, lost hers and had his stolen, respectively.

Sins Committed
Each of the Seven Deadly Sins have committed a grave crime, for which they were sentenced and judged by the kingdom of Britannia, before forming the group.

Meliodas
Meliodas sin is yet to be revealed.

Diane
Diane sin is yet to be revealed.

Ban
As the only survivor of the Fairy King's Forest, he took the blame of destroying the the forest, drinking water from the Fountain of Youth and killing its guardian saint upon himself. As a result, he was convicted, sentenced to death, and became known as the Sin of Greed due to his apparent greed for immortality.

King
King sin is yet to be revealed.

Merlin
Merlin sin is yet to be revealed.

Escanor
Escanor sin is yet to be revealed.

Gowther
Gowther sin is yet to be revealed.