After World war II ended, Planck, his second wife, and their son were brought to a relative in Göttingen, where Planck died on October 4, 1947. He was buried in the old Stadtfriedhof (City Cemetery) in Göttingen.
Max Planck (Wikipedia)Max Karl Ernst Ludwig Planck ForMemRS (English: /ˈplæŋk/, German: [maks ˈplaŋk];23 April 1858 – 4 October 1947) was a German theoretical physicist whose discovery of energy quanta won him the Nobel Prize in Physics in 1918.