Durandal

Introduction
Durandal is a void century sword, also known as the Sentinel of the Heavens. It is one of the three key swords to the ancient airship Zeus. It represents the element of defence and guarding, and is wielded by Jane Rose.

Appearance
Durandal is an ancient sword, and appears old and pitted at first, with the exception of it's hilt, which is solid gold in appearance. However, this does not affect it's cutting power or quality. The overall shape is that of a Zweihander, or a large european broadsword, although it is hard to cattegorize exactly. It's hilt is made of curling gold tubes or strands which overlap, creating an unusual effecct. it also sports a large crossguard.

Abilities and Powers
Durandal is an enduring sword, said to be indestructable, and will wear down mountains without even becoming dull or blunt. It acts as an amplifier for Haki, particularly Busoshoku haki, making the user's abilities much greater than they would be. When used in this way, the blade tends to glow gold, appearing to give off flames.

History
So........how, what or who made it? How did it come in into your character's possession? Used for good or evil?