Guys - Thanks so much for this information! I had been under the impression that the group was combatting the Allied bombing campaign, hence my confusion. The site says Königsberg-Devau which is likely a mistake.
http://www.ww2.dk/air/zerstorer/zg26.htm
I'm very much interested in the unit's actions on June 20, 1944 - perhaps they tangled with the bombers of 392nd Bomb Group during the B-24 raid on Pölitz - it seems to fit with Königsberg/Neumark location (and not Königsberg-Devau) and that the bombers did run into Me-410s that day.