What was the Empire?:
The Grand Holy Empire of Monbil was the largest Imperial State in Cycondrill. It was estableshed in mid 2nd Millennia, before that Monbil was the only kingdom on Tharr and was a relatively small 'Empire'. The Empire collapsed in mid 4th Millennia where the influence of the Emperor started to go down in the far away territories (eg. Donbile, Rebile, Playmobia). The 'Feral Lands' were what the Monbilians called the people that broke away from Monbilian Culture and found new lands of their own, they had no governing body and mostly consisted of tribes.
Why was it the Grand Holy Empire of Monbil?:
It was called the Grand Holy Empire of Monbil because the Empire was forged in the name of Drareg, legend says he told Jarluf to sail south to find and settle in Cycondrill.
The Knights of Monbil are ordinary foot soldiers wearing the Heraldry Symbol of Monbil, A Lion. These men fought and died protecting and conquoring lands in Cycondrill. They made an oath to the Emperor of Monbil and not to Drareg unlike the Knights of Drareg.
One of the main fighting forces of the Grand Holy Empire of Monbil is the Knights of Drareg. These knights made an oath to protect and serve the Emperor and Drareg until they die. They fought in huge armies storming much of north Cycondrill.