There are at least 7 artists known as Beowulf. Also see Beowülf, a crossover thrash/hardcore punk band formed in Venice Beach, LA in 1981.
These are photos from concerts where Beowulf played, so they may be of other bands that played the concert as well.
Beowulf / Psychosomatic / Head On Collision / Slip Into Coma Sep 18, 2009 Sacramento, California, United States Uploaded by Sacramento Shows