At the advice of his doctors he went to take the waters at Karlsbad , where he suddenly died on 7 August 1899 .
When he was in his sixties , Maris began to suffer from asthma and corpulence .
At the advice of Maris ' doctors Maris went to take the waters at Karlsbad , where he suddenly died on 7 August 1899 .
When he was in his sixties , Maris began to suffer from asthma and corpulence .