According to Coran, the Castle was built about 10,600 years ago by his grandfather. Ten thousand years ago, it came to rest upon planet Arus with Allura and Coran in a deep sleep inside its cryo-pods, and the Black Lion locked inside its hangar. The Castleship and its occupants are awakened once Lance, Shiro, Keith, Hunk, and Pidge arrive in the Blue Lion. The Castleship now serves as the home base to transport and defend the team, piloted by Allura and Coran.
The Castle of Lions provides a numerous amount of facilities to help accommodate training for the Paladins. The Castleship has a training gladiator robot, an invisible maze, as well as several other amenities to make the journey safe when traveling in space.
Weapons & Abilities
The Castle of Lions is powered by a Balmera's crystal of "Battleship" Class, the rarest of its types; a replacement Crystal is provided after the original is destroyed by a bomb. This Crystal enables the Castleship to generate a particle barrier for extra defense against enemy fire, as well as blast its own lasers at targets from the barrier itself. The Castle comes equipped with small battle drones the Paladins can control from within the Castle Bridge.
- King Alfor's memories are stored within a chamber after his death 10,000 years previous and exist as an Artificial Intelligence. This is destroyed by Allura after the Castleship and Alfor's AI is corrupted by a Galra Crystal.