Presumably twenty years ago when Serdio split into two countries, the northern Kingdom of Basil established at least thirteen knighthoods, though only a few are mentioned.
The 1st Knighthood of the Kingdom of Basil was wiped out shortly before the burning of Seles and abduction of Shana. The only survivors were Lavitz Slambert, Head of the 1st Knighthood, and a handful of knights that later died as P.O.W. in Hellena. With the help of Dart, Lavitz was able to escape and report the fate of his men to the king. The slaughter of the First Knighthood was later accounted as a "miscalculation" by King Albert's tactician, the Man in Black.
The 2nd Knighthood of the Kingdom of Basil was headed over a dozen years ago by Greham, who later betrayed Servi, former Head of the 1st Knighthood, along with all of Basil.
The 5th Knighthood of the Kingdom of Basil was annihilated by Imperial Sandora ten years after the Serdian Civil War began. There is a girl in Basil that still believes her boyfriend, the vice commander, is still alive a decade after the tragedy. As it turns out, the former second-in-command did survive the war and lives in the underground fort in Kazas with his wife and young child. However, he feels guilt for running away from his girlfriend and also his duty as a knight.
The 8th Knighthood of the Kingdom of Basil was stationed at the fortress town of Hoax at the conclusion of the war. Kaiser, Head of the 8th Knighthood, collaborated with another of the Knighthoods to defend Hoax, though they suffered severe injury to both body and morale after the raid of Hoax. The exhausted soldiers later rejoiced with the defeat of Feyrbrand and named the dragoons "messiahs" of the Kingdom of Basil.
The 10th Knighthood of the Kingdom of Basil was stationed at Seventh Fort in the Marshlands. When Dart, Lavitz, and company arrive following the attack of the dragon Feyrbrand, they are met with the gruesome scene of the genocide of the 10th & 13th Knighthoods. On his last breath, the head of the 10th Knighthood recognizes Sir Lavitz and warns him of the dragon's breath; as his last act, he hands over his lucky amulet, a Wargod Amulet.
The 13th Knighthood of the Kingdom of Basil was stationed with the 10th Knighthood at the Seventh Fort. Both were overwhelmed by an attack of the dragon Feyrbrand. Because of the dragon's poisonous breath, both Knighthoods were slaughtered.