Great sword based on Save the Queen from Final Fantasy XII with gold, silver, and black accent variants.
You can get these either by crafting at a forge (category steel, but no steel smithing perk required), or using the omnipotent power of the command console.
[Save the Queen] - Two-Handed great sword with gold accents. [Save the Queen - Black] - Two-Handed great sword with black (no) accents. [Save the Queen - Silver] - Two-Handed great sword with silver accents.