Answer
**Dutch.** Max Euwe was born in Watergraafsmeer, the Netherlands, in 1901 and died in Amsterdam, the Netherlands, in 1981. He was the fifth World Chess Champion, holding the title from 1935 to 1937 after defeating Alexander Alekhine. Euwe was also a renowned mathematician, earning a doctorate in mathematics in 1926 and later serving as a professor of mathematics at the University of Amsterdam.