During the Pilgrimage of Grace ( 1536 ) control of Hull was briefly taken by the rebels . After the rebellion , in late 1541 King Henry VIII visited Hull , and instructed that the fortifications be improved ; in addition to scouring of the moat , and repairs and improvements to the walls and gates , he instructed that the de la Pole house , which had become the King 's property was to be made into the town 's citadel , and modifications made to the drainage system outside the town , so that the fields could be flooded at times of threat
Pilgrimage of Grace
Pilgrimage of Grace
Fortifications of Kingston upon Hull