What was the purpose of missi dominici that charlemagne sent throughout his kingdom

The missi dominici ("envoy of the ruler" in Latin) were royal envoys sent by the Frankish King Charlemagne, who later became Emperor of the Holy Roman Empire, which encompassed much of western Europe.

He established this system to facilitate the administration of his extensive domain. A group of people of his confidence were regularly chosen to represent the court in remote territories of the kingdom. These were usually pairs of a laymen and an ecclesiastic.  

Its main purpose was to establish away the system in terms of facilitating the administration,

Its main purpose behind the establishment was in terms of facilitating with the administration of his extensive domain. Some group of people was selected away on the regular basis just as for the sake in representing the court in remote territories of the kingdom. These were usually set into the pairing of the laymen and also about the ecclesiastic.  

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