During the German occupation of Rome , which lasted from September 1943 to June 1944 , Pappagallo helped soldiers , partisans , allies , Jews and others wanted by the regime . Betrayed by a German spy Gino Crescentini , Pappagallo was arrested on January 29 , 1944 by the SS , as part of a campaign against the Roman resistance . Witnesses reported that Pappagallo shared his meals with fellow prisoners who had not received food . Sentenced to death , he was executed on March 24 , 1944 at the Ardeatine Caves
Ardeatine Caves
Ardeatine massacre
Pietro Pappagallo