NPCs composing that spawngroup :

an_underling (100%)

NPCs spawning around that spawngroup :
(Max range : 200)

dreadspire63243, range=53 (-1010,221,-311)

dreadspire63248, range=66 (-1089,312,-343)

dreadspire63250, range=43 (-1072,296,-335)

dreadspire63251, range=111 (-964,186,-309)

dreadspire63252, range=115 (-1008,151,-309)

dreadspire63255, range=190 (-980,82,-314)

dreadspire63552, range=39 (-1064,224,-313)

dreadspire_282445, range=105 (-1144,303,-353)

dreadspire_monocle_1_217, range=194 (-907,125,-140)

dreadspire_monocle_1_218, range=190 (-980,82,-314)

dreadspire_monocle_1_220, range=115 (-1008,151,-309)

dreadspire_monocle_1_221, range=111 (-964,186,-309)

dreadspire_monocle_1_222, range=43 (-1072,296,-335)

dreadspire_monocle_1_223, range=66 (-1089,312,-343)

dreadspire_monocle_1_226, range=166 (-1180,360,-384)