We do not know how he died or even how old he was when he died. He died in 1441 but we don't know when he was born. It is likely that he was born sometime between 1390 and 1400.
The actual cause of his death is not given in his biographies.
He was between 45 and 50. The exact dates of his birth and death are not recorded.
Jan Baptist Van Helmont who was a chemist died by ingesting LSD over a long period of time. The acid eventually ate his brain.
Jan Baptist van Helmont died on December 30, 1644 at the age of 67.
Jan Baptist van Fornenburgh died in 1650.
Jan van Vliet died in 1666.
Jan van Virneburg died in 1371.
Jan van Speyk died in 1831.
Jan Baptist van Helmont died on December 30, 1644 at the age of 67.
Jan Baptist van Fornenburgh died in 1650.
Jan Baptist van Heil died in 1685.
Jan Baptist van Rensselaer died in 1678.
Jan Baptist van der Hulst died in 1862.
Jan Baptist van Deynum died on 1668-05-02.
Franciscus Mercurius van Helmont died in 1699.
Jan Baptist Xavery died in 1742.
Jan Baptist Weenix died in 1659.
Jan-Baptist Verlooy died in 1797.
Jan van Krimpen died in 1958.
Jan van Belcamp died in 1663.