Wikipedia
L'Encobert
The Hidden (, , "The Hidden/Shrouded [One]") (d. 1522) was a mysterious and charismatic leader of the remnants of the rebels in the last stages of the Revolt of the Brotherhoods in Aragon. Also called "The Hidden King" , he claimed to be a prince hidden for his own safety now showing himself by divine command to save Spain from ruin. The Hidden unified the rebels for a short period, inspiring messianic fervor among his followers. He led them on hit-and-run raids against the royal government, uncooperative nobles, and Muslim peasants ( mudéjars). The Hidden was killed in Burjassot on May 18, 1522, and the rebellion soon collapsed afterward. His true name and lineage are unknown.