births
Jan Hein Donner, Dutch chess player and journalist (died 1988)
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Jan Hein Donner
Dutch chess grandmaster (1927–1988)
Johannes Hendrikus (Hein) Donner was a Dutch chess grandmaster and writer. He was born in The Hague. His father Jan Donner was a prominent Dutch politician and judge. Donner won the Dutch Championship in 1954, 1957, and 1958. At the Gijón tournament of 1956 he came third, behind…Source: Wikipedia (CC BY-SA)