The German chancellor , Angela Merkel , and the mayor of Berlin , Klaus Wowereit , had turned up for the ceremony , and he drew them into a private talk about the future of the Staatsoper Unter den Linden , where Mr. Barenboim has been general music director since 1992 .
Klaus Wowereit
Berlin
/people/person/place_lived
PERSON
Angela Merkel
LOCATION
Berlin
PERSON
Klaus Wowereit