NPCs composing that spawngroup :

a_siren_enchantress (33%)

a_siren_enchantress (33%)

a_siren_priestess (34%)

NPCs spawning around that spawngroup :
(Max range : 100)

sirens_4, range=73 (-511,-718,-193)

sirens_6, range=50 (-566,-647,-152)

sirens_48, range=59 (-640,-695,-152)

sirens_82, range=87 (-550,-613,-72)

sirens_85, range=36 (-566,-662,-47)

a_siren_enchantress (50%)
a_siren_enticer (50%)

sirens_98, range=94 (-668,-732,-58)

sirens_100, range=47 (-610,-733,-58)

sirens_101, range=40 (-594,-657,-68)

sirens_102, range=58 (-639,-701,-58)

sirens_103, range=87 (-663,-665,-60)

a_siren_enchantress (50%)
a_siren_enticer (50%)

sirens_104, range=44 (-614,-665,-60)

sirens_105, range=94 (-661,-644,-62)

sirens_106, range=62 (-616,-643,-62)

sirens_118, range=76 (-640,-743,-164)

an_enthralled_bulthar (50%)
an_enthralled_bulthar (50%)

sirens_144, range=67 (-549,-754,-68)

sirens_145, range=71 (-638,-738,-25)

#Mistress_Latazura (100%)

sirens_231229, range=37 (-565,-661,-47)

sirens_231274, range=62 (-615,-642,-62)

a_watery_servant (100%)

sirens_231275, range=94 (-660,-643,-61)

an_icy_servant (100%)
an_icy_servant (100%)

sirens_231277, range=70 (-644,-664,-60)

sirens#Mistress_Latazura0002124999, range=71 (-638,-738,-27)

#Mistress_Latazura (100%)

sirens_231286, range=44 (-614,-665,-60)