Open this photo in gallery: Sidney Itzkowitz poses with an old family photo showing himself, far left, his father Dovid, mom Mushke and younger brother Chaim.CHRISTINNE MUSCHI/The Globe and Mail They were five Jewish brothers in German-occupied Poland. They evaded the death squads that murdered their parents. They took part in a mass escape from a ghetto in a medieval castle. They joined partisan units operating behind enemy lines in the forests and marshes of Belarus. Three of the brothers survived the war and eventually settled in Montreal, where they became successful entrepreneurs. Now the last of them has passed...