A more thorough explanation:

CONCILIUM REGIS

Concilium regis is a Latin term that means "assembly of the king." It refers to a tribunal that was active during the reigns of Edward I and Edward II. This tribunal was responsible for hearing cases of extraordinary difficulty.

During the reign of Edward I and Edward II, the concilium regis was responsible for hearing cases that were too difficult for other courts to handle. For example, if there was a dispute between two powerful lords or if a case involved a member of the royal family, it would be heard by the concilium regis.

One famous case that was heard by the concilium regis was the case of Piers Gaveston. Gaveston was a close friend of Edward II and was accused of being corrupt and abusing his power. The concilium regis was called upon to hear the case because of its importance and difficulty.

The concilium regis was a special court that was reserved for cases that were too difficult for other courts to handle. This court was made up of advisors to the king and was responsible for making important decisions that affected the entire kingdom. The examples given illustrate how the concilium regis was used during the reigns of Edward I and Edward II. The court was used to hear cases that involved powerful people or members of the royal family. This shows how important the court was and how it was reserved for only the most important cases.