the first one, right before road of sacrifice, this guy can easily be cheesed with anything ranged from the bonfire. he wont attack you if you are outside, if you dont use arrows or magic you can easily take a few steps in make a charged heavy attack then retreat out the door so he resets. rinse and repeat until he is dead. 100% physical sheild helps with this melee strategy. dont roll just walk backwards holding the sheild up.