NPCs composing that spawngroup :

an_Isle_defender (100%)

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

thundercrest_monocle_248, range=150 (-154,2409,176)

thundercrest_monocle_250, range=195 (-159,2457,177)

thundercrest_monocle_252, range=187 (-204,2419,177)

thundercrest_monocle_285, range=38 (-78,2315,157)

thundercrest_monocle_8_0, range=71 (-139,2234,125)

thundercrest_monocle_8_42, range=195 (-159,2457,177)

thundercrest_monocle_8_49, range=189 (-223,2403,178)

thundercrest_monocle_8_55, range=111 (-83,2165,160)

thundercrest_monocle_11_9, range=71 (-139,2234,125)

thundercrest_monocle_11_19, range=195 (-159,2457,177)

thundercrest_monocle_11_30, range=189 (-223,2403,178)

thundercrest_monocle_11_36, range=168 (-247,2311,160)

thundercrest_monocle_11_37, range=122 (-201,2309,160)

thundercrest_monocle_12_94, range=189 (-223,2403,178)