NPCs composing that spawngroup :

Vessel_Grymm (100%)

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

cabeast_6, range=79 (993,-86,15)

cabeast_10, range=96 (1013,-257,-25)

Sarth_Scarscale (100%)

cabeast_32, range=97 (942,-97,3)

Crusader_Olos (100%)

cabeast_66, range=49 (1037,-206,73)

Librarian_Zimor (100%)

cabeast_87, range=58 (1000,-105,45)

Squire_Gristle (100%)

cabeast_89, range=61 (1059,-205,45)

#Prime_Patriarch_Vuzx (100%)

cabeast_91, range=59 (1039,-216,18)

Vessel_Kirtokk (100%)

cabeast_92, range=56 (1025,-217,18)

Vessel_Drekk (100%)

cabeast_93, range=15 (1031,-159,18)

Vessel_Migron (100%)

cabeast_94, range=34 (1050,-159,18)

Vessel_Mortyr (100%)

cabeast_96, range=64 (1050,-216,18)

Vessel_Grott (100%)

cabeast_97, range=59 (1011,-220,18)

Vessel_Kabda (100%)

cabeast_107, range=55 (1055,-200,20)

Hierophant_Zand (100%)

cabeast_108, range=41 (1054,-177,20)

Hierophant_Oxyn (100%)

cabeast_109, range=39 (1044,-189,21)

Prime_Hierophant_Vek (100%)

cabeast_110, range=54 (1029,-108,-11)

Gaxl_the_scribe (100%)

cabeast_111, range=14 (1005,-151,45)

Lord_Qyzar (100%)

cabeast_112, range=47 (1062,-173,45)

Lord_Korzin (100%)

cabeast_113, range=18 (1034,-165,45)

Lord_Gikzic (100%)

cabeast_114, range=28 (1014,-189,73)

Arch_Duke_Xog (100%)

cabeast_121, range=28 (1024,-188,45)

Slithreina (100%)

cabeast_124, range=29 (1026,-189,59)

Zreezas (100%)

betabstgmspawner_189517, range=59 (1067,-191,59)

betabstgmspawner (100%)

cabeast_55118, range=73 (1055,-223,46)

Elder_Patriarch_Ixthal (100%)