NPCs composing that spawngroup :

an_Isle_keeper (100%)

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

thundercrest_monocle_230, range=129 (-800,2234,125)

thundercrest_monocle_236, range=92 (-641,2081,123)

thundercrest_monocle_276, range=158 (-697,2311,158)

thundercrest_monocle_8_10, range=129 (-800,2234,125)

thundercrest_monocle_8_14, range=190 (-798,1990,125)

thundercrest_monocle_8_64, range=186 (-600,2311,160)

thundercrest_monocle_8_73, range=167 (-534,2127,124)

thundercrest_monocle_8_80, range=162 (-862,2143,160)

thundercrest_monocle_11_7, range=129 (-800,2234,125)

thundercrest_monocle_11_8, range=190 (-798,1990,125)

thundercrest_monocle_11_16, range=167 (-534,2127,124)

thundercrest_monocle_11_26, range=172 (-622,1999,129)

thundercrest_monocle_11_35, range=182 (-609,2311,160)

thundercrest_monocle_12_3, range=92 (-641,2081,124)

thundercrest_monocle_12_11, range=190 (-798,1990,125)