This cannon is more work of art than war machine. It is said that it was never fired, but one report states that gunpowder was found inside the barrel during a restoration in 1980. It was commissioned in 1586 during the reign of the feeble-minded Fyodor, son of Ivan the Terrible.
The barrel is more than 16 feet long, and the bore is over 890mm, or 15 inches. The two-ton cannon balls piled nearby are purely decorative since they are too large to fit into the bore of this cannon. They were added in 1835 along with the ornate carriage.