Pluskelleg of Breton "Plou" primitive parish and askoleg: place where there are a lot of thistles or other version ... "Plusk-hallec" (willow bark), nickname given to the lord William of Plusquellec after the battle of Brank-hallec near Relecq.
Of Celtic coins and Roman coins have been updated on its territory.
Parish and mother Botmel Calanhel, it gave its name to a feudal house known since the 13th century whose castle was in Callac.
The Lordship of Plusquellec is one of the oldest in the diocese of Cornwall. The first known lord was living in 1235, it's name was William. It is from weapons of Plusquellec (red chevrons on white money) led to the creation of blazons current common Plusquellec and Callac.