NPCs composing that spawngroup :

a_sepulcher_skeleton (100%)

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

charasis_44, range=20 (-271,45,4)

an_undertaker_skeleton (50%)
a_sepulcher_skeleton (50%)

charasis_52, range=151 (-267,-127,22)

hexbone_skeleton (100%)

charasis_59, range=165 (-274,-140,23)

charasis_60, range=140 (-250,-114,22)

charasis_61, range=186 (-182,-140,22)

charasis_62, range=106 (-223,-71,22)

charasis_93, range=189 (-367,-137,4)

charasis_94, range=170 (-389,-96,4)

charasis_96, range=83 (-351,8,14)

a_sepulcher_skeleton (100%)

charasis_97, range=140 (-408,4,14)

an_undertaker_skeleton (50%)
a_pulsating_bile (50%)

charasis_98, range=96 (-284,120,5)

a_helot_spectre (100%)

charasis_99, range=72 (-333,-8,15)

charasis_103, range=157 (-273,182,4)

charasis_104, range=147 (-368,134,4)

a_sepulcher_skeleton (100%)

charasis_109, range=155 (-367,-96,5)

charasis_111, range=185 (-96,-42,-189)

greater_war_boned_skeleton (100%)

charasis_160, range=65 (-332,6,14)

charasis_165, range=134 (-226,152,4)

charasis_178, range=94 (-244,-66,-127)

a_sepulcher_skeleton (100%)

charasis_179, range=118 (-387,10,-139)

a_bottomless_feaster (100%)

charasis_180, range=62 (-227,-21,-122)

charasis_181, range=48 (-257,-22,-122)

a_crypt_spectre_189514, range=126 (-237,147,5)