was a Luftwaffe ace and recipient of the Knight's Cross of the Iron Cross during World War II. On 6 March 1944, Frey was killed over Sleen, the Netherlands after attacking a formation of Boeing B-17 Flying Fortress bombers. He was posthumously awarded the Knight's Cross on 4 May 1944. During his career he was credited with 32 aerial victories including 25 four-engine bombers, all on the Western Front.
