NPCs composing that spawngroup :

a_grimling_miner (2%)

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

grimling1336225, range=59 (-80,1513,-150)

grimling1336181, range=91 (-5,1549,-150)

grimling1336180, range=26 (-91,1545,-150)

a_grimling_elder_guard (100%)

grimling1336179, range=70 (-33,1606,-150)

grimling1336162, range=50 (-121,1528,-150)

grimling1336159, range=138 (-95,1433,-150)

grimling1336016, range=185 (78,1640,-147)

a_grimling_elder_guard (50%)
a_grimling_elder_guard (50%)

a_grimling_sorceress_1433331, range=150 (-130,1425,-148)

a_grimling_sorceress (2%)
Sorceress_Gnildaria (2%)

a_grimling_miner_1433332, range=34 (-119,1595,-148)

a_grimling_miner (2%)

a_grimling_miner_1433333, range=105 (-108,1466,-148)

a_grimling_miner (2%)

a_grimling_miner_1433335, range=56 (-88,1515,-149)

a_grimling_miner (2%)

a_grimling_miner_1433336, range=178 (-12,1412,-150)

a_grimling_miner (2%)

grimling_113149, range=143 (-118,1430,-150)

Spiritmaster_Ugreth (100%)