Camelot

The Camelot (キャメロット, Kyamerotto) is a special team led by Bann Benoic, the descendant of King Ban from Arthurian Legend, and sub-led by Uriel Galiena, the son of the Seraph, Uriel, and Amuka Muramasa, the descendent of japan's greatest swordsmith, Masamune.

Summary
Camelot was formed after the events in Volume 12 of Jester of the Gremory Clan, to act as a special team in DxD, and was first formed by Bann Benoic, Uriel Galiena, Amuka Muramasa, Gilgamesh, Lancelot Du Lac and Ro Land.

Trivia

 * The group is named after King Arthur's Castle and Court, Camelot, from Arthurian Legend.