Former German Chancellor Helmut Kohl, who presided over reunification of his country divided after the Second World War and throughout the Cold War and greater European integration, died on Friday, media reports said.
Baker said Kohl and former U.S. President George H.W. Bush "convinced the world to put East and West Germany back together as a member of North Atlantic Treaty Organisation nearly a half century after the division of Europe following World War II".
The Bild newspaper first reported his death.
Angela Merkel, the shy physicist from communist East Germany whom Mr Kohl had plucked from obscurity to join his cabinet after the fall of the Berlin Wall, turned on him at a crucial moment during the scandal, ensuring his exile.
Germany's longest serving post-war chancellor from 1982 to 1998, Kohl was a driving force behind the introduction of the euro currency, convincing sceptical Germans to give up their cherished deutschemark.
"When the Berlin Wall fell, he rose to the occasion, a true European".
These relationships became invaluable when East Germany began to unexpectedly collapse in 1989: Kohl was able to address concerns of worldwide parties on all sides while also on the domestic intricacies of reunification.
Uniting the two would prove a Herculean task, with "Wessis" (Westerners) loath to sacrifice their standard of living, and "Ossis" (Easterners) keen for unity but anxious of being treated as second-class citizens.
Some world leaders may find it challenging to direct one country.
FILE - The June 20, 1997 file photo shows President Clinton welcomes German Chancellor Helmut Kohl prior to a formal dinner for the leading dignitaries of the Summit of the Eight at the University of Denver's Phipps House in Denver. "All fears boiled down to one thing - that Germany would become strong again", he wrote.
Former German chancellor Helmut Kohl passing the Brandenburg Gate during a private walk in Berlin.
Netanyahu says he sends "condolences to the Kohl family and to the German people".
But less than three weeks later, he unveiled a 10-point plan that decisively set East and West on course for unification.
"The story of Helmut Kohl is the story of 20th-century Germany". The reunification occurred in October 1990.
Mr Juncker was the prime minister of Luxembourg during some of Kohl's time as chancellor of Germany.
Could Kohl have done more to prevent the side effects of a rapid and, at times, seemingly uncontrolled reunification, which continues to plague parts of the east?