High Places (Fortress): "During your preparation and discard phases, you may play evil Enhancements that contain the word "place" in the special ability. If you capture a Hero in a territory, discard this card."
This may have already been discussed before, so sorry if it's redundant:
Do you need to have a matching evil character brigade in territory (your territory or any territory?) in order to play a relevant 'place' enhancement?
A big 'thank you' in advance from the NY-New England group!