Tristan


 * Series: RZA-3F9
 * Height: 5.45m
 * Weight: 7350kg
 * Weapons:
 * Slash Harken × 2 (スラッシュハーケン, Surasshuhāken) (generates an energy blast when combined)
 * Energy Cannon × 1 (formed from Slash Harkens)
 * MVS Polearm × 2
 * Machine Gun × 2
 * Equipment/Installment:
 * Harken Booster × 2
 * Landspinner propulsion system
 * Integrated Float System
 * Fortress Mode (transforms into a jet fighter)

An eighth generation model, the Tristan, named after the Knight of the Round Table, is the first transforming Knightmare Frame ever developed, able to switch between humanoid (Frame) and jet (Fortress) forms. It is piloted by the Knight of Three, Gino Weinberg. It is highly maneuverable, able to fold out and transform in mid-air. It can utilize a pair of machine guns in its jet form. It has two massive Slash Harkens mounted on its forearms, which are equipped with Harken Boosters. The two Slash Harkens can combine to fire an energy blast, powerful enough to effectively match the Shenhu's Baryon Cannon. When in humanoid form, it can wield two pickaxe-like Maser Vibration Swords called the MVS Polearms, which can be joined together at the hilts to form a single, double-edged scythe. The Tristan is heavily damaged by the Lancelot Albion, during the attempted revolt against Emperor Lelouch.

Tristan Divider

 * Series: RZA-3F9X1
 * Height: 5.45m
 * Weight: 9550kg
 * Weapons:
 * Slash Harken × 2 (スラッシュハーケン, Surasshuhāken) (generates an energy blast when combined)
 * Energy Cannon × 1 (formed from Slash Harkens)
 * "Excalibur" large Maser Vibration Sword x 2
 * Equipment/Installment:
 * Harken Booster × 2
 * Landspinner propulsion system
 * Air Glide Wing System
 * Fortress Mode (transforms into a jet fighter)

Following Gino's defeat by Suzaku, the Tristan is rebuilt by Rakshata's team and named the "Tristan Divider" (トリスタン・ディバイダー, Torisutan Dibaidā). It features a Black Knights' model Float System, a redesigned head unit similar to the Galahad, with longer red horns. The MVS Polearms are replaced with the two severed halves of the Galahad's Excalibur that has been repaired into 2 swords. And like its predecessor it has access to a fortress mode. It is used by Gino to assault Damocles and to defeat Lelouch's Shinkirō, but it is quickly bested by Suzaku's Lancelot Albion, severed in half at the waist. Despite its condition, Gino manages to rescue Kallen from free-fall in her damaged Guren S.E.I.T.E.N. Eight-Elements Type.

Tristan (Knightmare of Nunnally)

 * Series: Unknown
 * Height: Unknown (estimated 5.45m)
 * Weight: Unknown (estimated 7350kg)
 * Weapons:
 * Automated Trajectory Variable Type MVS Slash Harken x 6
 * Equipment/Installment:
 * Harken Booster x6

In the manga spin-off Code Geass: Nightmare of Nunnally, Anya uses a modified version of the Tristan. It is similar in appearance to the regular Tristan except for the Geass sigil on the Knightmare's face. It makes its first appearance in chapter 18 to fight the Lancelot. Its main difference to the original Tristan is its weaponry, being six Automated Trajectory Variable Type MVS Slash Harkens.