He was a SA Gruppenfuhrer. He was nazi Gauleiters of gau Franconia. He joined the party in 1922 and grew. He had close relation ship with Streitcher, A prominent nazi. When streitcher was involved in a corruption charge, holz also lost his office, but soon was again in the run. He was made leader of Gaul by H itler although strietcher was still there. When allied troops captured nuremberg he holed up himself with a small group in a bunker at police camp and resisted the US troops without surrendering. With him was the mayor willy Liebel with whom he had many differences earlier over control of Nuremberg.. It is believed that Holz shot dead the mayor in the bunker as he was trying to surrender the city to US troops to stop fighting. Some also are of opinion that the mayor died in fighting the U.S. Troops. at last HoLz also met his end in the bunker fighting the allies on 20 April 1945 which happens to be the birth day of Hitler who in fact awarded holz for bravery for defending Nuremberg very boldly and stubbornly.
they were gassed and preparing for cremation. He was stabbed to death along with ten more German gurads and few more Ukranian gurads during uprising at the camp by inmates on 10 October 1943.