Polish scholar Krzysztof Ruchniewicz, whose work focusses on German history, has been named Warsaw’s coordinator for German-Polish cooperation. Polish Foreign Minister Radosław Sikorski appointed the 57-year-old to the post in recognition of his “contribution to German-Polish understanding and the European idea,” a ministry statement said at the weekend. Ruchniewicz is a professor of contemporary history at the University of Wrocław and director of the Willy Brandt Centre for German and European Studies there. The appointment is seen as another signal from Prime Minister Donald Tusk’s centre-l…