I set the proximityrange to 30, so that the brigands spawn before the player gets there. The key property here is the TriggerOnCarried property, it must be set to the name of the questholder ?A Beggars Treasure? so that the brigands only spawn for a player doing the quest. RefractMax and RefractMin are set to 10 minutes; this means that the spawner will wait 10 minutes before respawning the brigands, because you don?t want them to keep respawning instantly.

The actual entry that spawns the brigands looks like this: 

#CONDITION,GETONCARRIED,A Beggars Treasure,questholder,completed1=false ; Brigand