Wikipedia
Marmousets
The marmousets (referred to as les petites gens) is a nickname, first recorded in the chronicles of Jean Froissart, for a group of counselors to Charles VI of France. Although they were neither princes nor civil servants, they were simply very close to the king. Thanks to this position, they were able to access the highest functions of the state. These men were endowed with another quality, the solidarity between them. Chosen by Charles VI in 1388, they vowed to remain united and friends.
Their name, essentially the same as marmoset, referring to monkeys, was also a term for the English at the time.