Best Pizza in Oberhausen, North Rhine-Westphalia: Find Tripadvisor traveller reviews of Oberhausen Pizza places and search by price, location, and more. A war between the two 'Ndrangheta clans Pelle-Romeo (Pelle-Vottari) and Strangio-Nirta from San Luca that had started in 1991 and resulted in several deaths spilled into Germany in 2007; six men were shot to death in front of an Italian restaurant in Duisburg on 15 August 2007. Best Pizza in Oberhausen, North Rhine-Westphalia: Find Tripadvisor traveller reviews of Oberhausen Pizza places and search by price, location, and more.