 Complete the following phrase:  Porombka was born in Zabrze, a substantial conurbation east of Breslau and close to Kattowitz. His father, also called Vinzent Porombka, was a miner who would end his life as a murder victim in the Groß-Rosen concentration camp. Long before that, when Vinzent Porombka was aged 4, the First World War broke out. Less than a year after that Zabrze was renamed as Hindenburg, to honour the German military commander on the Eastern front who had recently received much public adulation following his victory at 