Jan de Vries

Jan de Vries (5 January 1944 – 14 January 2021) was a Dutch Grand Prix motorcycle road racer. He was born in Sint Jacobiparochie, Netherlands. 
In 1971, he became the first Dutchman to win a F.I.M. world championship. In 1973, he won another 50 cc world championship.
He lost the 1972 world championship to Angel Nieto by the narrowest of margins. 
Vries died on 14 January 2021 of cardiac arrest in Purmerend, Netherlands at the age of 77.