The planet of Orth was created by the Gods known as The Five as a place to test their powers and later to provide them with worshippers and, apparently, entertainment. It exists in the plane of Materium, and is connected by various means to the four Prime Elemental Planes of Ji, Neró, Ignis and Zephyr. It is also linked to Pandaemonium via a singular portal, and was briefly connected to Radiance through unknown means.
Orth exists at a point in the multiverse which is a convergence point for The Weave, a deliberate decision by the Supreme God Jak'ra as it allows the races of Orth to have access to the flow of mana without their development being directly affected by it.
The Imperial coronation armour dates back to the 2nd Age, and was a gift from the last independent King of the Dwarves to celebrate their integration into the Empire.
The armour itself is of a antiquated style of heavy plate armour, but the materials are adamantine carved with channels in magical patterns. These channels are inlaid with Mythril from Trollopolis and a large amount of gold leaf, and the entire suit was made by a highly skilled Centaur blacksmith.
It has never been worn into combat, considering its impractical design, extreme weight and various weak points (notably the joints being made of regular steel due to the difficulty of shaping small pieces of adamantine), as well as its importance culturally and its intended use as a ceremonial piece. When not in use it is usually displayed in a magically guarded glass case in the Imperial Palace's main hall.