Up to 1,000 male and 500 female slaves were shackled and crammed in the castle’s dank, poorly ventilated dungeons, with no space to lie down and very little light. Without water or sanitation, the floor of the dungeon was littered with human waste and many captives fell seriously ill.
Once the slaves set foot in the castle, they could spend up to three months in captivity under these dreadful conditions before being shipped off to the New World.
Canons were also placed on the roof.