It appears there might be some confusion in the name "Paul von Buri" as the search results do not provide any information about this individual. However, the search results do provide information about Paul von Hindenburg, a prominent German military leader and statesman. According to Britannica, Paul von Hindenburg passed away on August 2, 1934, in Neudeck, Germany, which is now in Poland. He was 86 years old at the time of his death. If "Paul von Buri" was a typo and you were actually asking about Paul von Hindenburg, then he died in Neudeck at the age of 86.