Dockside Gate
This was not intended to be the main gate of the castle. That would've been on the North side of the castle but it was never completed. This entrance borders the docks where merchants would have to stop to pay tolls. If they had any nasty intentions toward the castle's inhabitants this gate offered a number of surprises for any invader. Just above the entrance are the "murder holes" where hot oil could be poured down on the intruders. If they somehow got past this an attacker would still have to face eleven more defenses before getting to the center of the castle. They'd need to fight through the barbican, another series of "murder holes," three portcullises and a few more heavy wooden doors. Anybody too bloodied or too tired to carry on would face infillading fire from almost all directions if he paused between the inner and outer walls.