Stronghold, Dol Goldur and they had one something like ''Minas Morgul''....not so sure of THAT title, but everything Ive heard of theirs is fuckin amazing. Like Lycia doing black metal.
Summoning is an awesome band. I highly recommend all of their albums especially Dol Guldor and Stronghold. Very relaxing dreamy atmospheric epically minimalistically inclinded symphonic black metal.