NPCs composing that spawngroup :

#invisible_trigger_one (2%)

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

tenebrous1376054, range=50 (529,-1140,143)

a_coterie_centurion (50%)
a_coterie_centurion (50%)

tenebrous1376053, range=71 (650,-1135,143)

a_coterie_centurion (50%)
a_coterie_centurion (50%)

tenebrous1376052, range=98 (659,-1075,15)

tenebrous1376037, range=89 (490,-1141,316)

a_coterie_general (100%)

tenebrous1376035, range=86 (655,-1090,317)

a_coterie_general (100%)

tenebrous1376034, range=98 (491,-1087,257)

#invisible_trigger_t_1433500, range=73 (580,-1205,575)

#invisible_trigger_two (2%)

#volatilis_monitor_1433515, range=31 (579,-1101,575)

#volatilis_monitor (2%)

tenebrous_castle_entry_2, range=95 (563,-1038,18)